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About Us

M/s Tejaswini Industries is one of the pioneers engaged in manufacturing and supplying of a huge assortment of Transformers and all types of Electrical Panels. The products offered by us like PLC Control Panel, APFC Control Panel, Distribution Control Panel, Power Factor Correction Panel, Electric Switchgear Panels, Unitized Substation, Dry Type Transformers, Electrical Power Transformer and Transformer repairs many more are well appreciated in


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Basic Information
Nature of Business
Exporter and Manufacturer
Additional Business
  • Service Provider
  • Supplier
  • Distributor
  • Wholesaler
  • Trader
Company CEO
Ambadas Donta
Registered Address
3-13-109/1/1, FCI Road, Suryanagar, Mallapur, , Hyderabad- 500076, Telangana, India
Total Number of Employees
11 to 25 People
Year of Establishment
Legal Status of Firm
Partnership Firm
Annual Turnover
Rs. 2 - 5 Crore
Statutory Profile
Import Export Code (IEC)
Tan No.
Packaging/Payment and Shipment Details
Payment Mode
  • Cash
  • Cheque
  • DD
  • Online
  • Credit Card
  • Bank Transfer
Shipment Mode
By Road

About The Company

Major contributing factors to our growth and success have been the hands-on deck. Our employees put in their best for every unit produced. We currently are operating with a strong workforce that believes in upholding the high standards of quality products set forth by the company while being at their efficient best.
At Tejaswini Transformers, we ensure that we do what it takes to give the customer the exact customization they are looking for. The five major departments are R&D, Design, Quality Control,

Assembly (Winding Section, Core Building, Core Coil Assembly, Vacuum Drying, Tanking, Painting sections) and Testing.

At Tejaswini, one of our main beliefs is that ‘Quality is never an accident; it is always the result of high intention, sincere effort, intelligent direction and skillful execution. It represents the wise choice of many alternatives.’ And in order to make sure our quality reaches our customers, we have a comprehensive sales and service network that operates in markets.

Our Management

Unit I
We have fully equipped winding machines (Both CNC and Manual) with capabilities to handle copper and aluminium foils, rectangular, Square and round wires. We also have facilities to operate both vacuum and dip varnish process with curing ovens to assure controlled curing over the full range of product and process. We also have machineries for lamination cutting and punching to make up for any shortfall. We have two fully equipped digital testing systems which are regularly calibrated for accurate measurements.

Unit II fabrication
We have fully equipped fabrication unit having capabilities to handle fabrication of good quality transformer tanks and panels. After the fabrication every transformer tank is tested with air pressure so as to take care of oil leakage.

Unit 3
We had established a well-equipped repairing centre for the Transformers, both power and Distribution Transformers at Rajanna, Sircilla District.


Exclusives in Our Core Building

Non use of yoke studs
• Advantage: The transformer operates silently, along with reduced humming noise and no undue failure due to yoke stud insulation failure.
• Benefit:Long life and less operational noise.

Special Core Lifting Table
• Advantage: Loose contact at the joints will be avoided. This also leads to reduction of Magneto strict ion forces.
• Benefit: Long Life, Less Noise

.Core Clamps
• Advantage: Eddy current losses will be reduced by using the specially designed Core frames.
• Benefit: Low Running Cost

Exclusives in Our Assembling

Special Brazing Machine
• Advantage: Avoids heating at the braze points due to neat and proper brazing joints.
• Benefit: Long life and low running cost.

Beautiful Tap Leads arrangement
• Advantage: Robust and solid lead arrangement sustains short circuit forces.
• Benefit: Trouble free operation.

Exclusives in Our Testing
Computerized and Fully Automated Test Lab
• Advantage: Accurate test results without manual interference. This saves a lot of time.
• Benefit: Reliability.

Customized Products

• Transformers are manufactured from imported cold rolled grain oriented M3H/M4H Grade Lamination duly metered & annealed with low Flux Density,
• Transposed Duplex Winding for copper conductors with Double/Triple covered Munjasco insulation paper with extra covering.
• Saving of energy which occurs through out the operation life-time for the transformer.
• Low Magnetizing Current to save no-load electricity bills & capacitors for Transformer.
• Higher no-load power factor of the transformer.
• Less temperature rise of core.
• Transformers are designed for high impedance i.e. up to 10% or even more to with stand heavy load and short circuit, as per your specifications.
• Inherent overloading capacity due to (a) Low Loss, more size and more quantity of oil. (b) High power factor and less no-load current.
• All fittings, Conservator with detachable cover, Inspection cover, Main Lid etc. fitted such that, without disturbing HV & LV connecting cables, easy maintenance can be done in absolutely no time at site.
• Enough broader Radiators are provided to limit temperature of oil. These Radiators are manufactured as per German Design from 1.15 mm thick MS CRCA Sheets.

Our Infrastructure

Since the commencement of our organization, we have built a tremendous infrastructure unit at our base. With the support of ultra-modern machine and examination facilities that are managed by our knowledgeable experts, we assure that we are able to provide optimum quality products. We ensure to provide regular up-gradation to these machines with an aim to enjoy their smooth working life. In addition, we have parted this unit into various departments for smooth conduct of the occupation.

These departments are mentioned below:

  • Manufacturing
  • Quality
  • Packing
  • Warehousing

Quality Assurance

Our products range demands great precision, durability and quality. The core values that we have adopted lays great emphasis on the quality in our range. The management constantly strives to take effective steps to maintain its name as a brand leader in the industry.


We regularly update ourselves with the latest changes in manufacturing and adopt them to give consumers value for money as well as premium quality. Due to the customization option that we offer, we ensure that the entire range is built to suit customer specifications. Thus, with our stringent quality control measures, we ensure that our range is free from defects, has great performance capacities, totally environment friendly and is extremely safe.

Raw Materials

Hydraulic L-Bend & S-Bend Tools

It is said that ‘God lies in the details’, and that is true in our case. Transformers for us are more than just a business, they are a breathing passion. Here are some of the ways in which our strive for perfection has made a sea change in our transformers.

    Advantage: They allow for soft bending. The conductor does not get damaged, and the insulation remains intact. This design avoids partial discharge.


    Benefit: The Transformer enjoys a long life.


Well Finished Runners
    Advantage: Well finished runners allow for perfect coil tightening. The insulation thus remains strong and durable, and will not break.


    Benefit: Long Life


Using pure & properly annealed Copper Conductor
    Advantage: Owing to the lower resistivity of this conductor, copper losses are minimal.


    Benefit: Low Running Cost


Using Collapsible former
    Advantage: Inner diameter is accurate, and hence perfect clearance between core and coil is possible. This ensures better oil flow, besides minimal Core Quantity and losses.


    Benefit: Low maintenance cost and long life.


Providing well finished machined Insulation blocks
    Advantage: Provides Good Passage of Oil flow and accurate coil tightening can be achieved.


    Benefit: Long and trouble-free life.


Using Hydraulic coil compressor
    Advantage: Coil is tightened equally so that Coil withstands for short circuit forces and 3-phase impedances will match


    Benefit: No circulating current through neutral.


Specially Designed Interleaved Tapings
    Advantage: Reduces short circuit forces during faulty condition.


    Benefit: Trouble free operation

Why Us?

• Manufacturing of all kind of power and distribution Transformers up to 5 MVA, at 11/33 KV class.
• Manufacturing of all kind of custom-built transformers like Cast Resin or Vacuum pressure impregnated Dry Type transformers, PLC Control Panel, APFC Control Panel, Distribution Control Panel, Power Factor Correction Panel, Electric Switchgear/LBS Panels, Unitized Substation, Electrical Power and Distribution Transformers and many more.
• Manufactured transformer of any rating or capacity are given guarantee of 12 months guarantee.
• Transformers are manufactured as per customer requirement.
• Retrofitting of transformers with zero leak
• More than 5000 transformers are operating seamlessly across/ serving the country.
• proper design facility with our own software.
• Guaranteed after sales service network covering entire nation.
• Widely approved by all the major organizations/ PSU’s/ Consultant’s & EPC’s.
• An ISO 9001:2015 and BIS Certified Organization.
• A continuous process that involves assessment, re-assessment and constant upgrades has seen our plant go from producing Oil Filled Transformers, up-to 5 MVA of 11 or 33 KV Class and Cast Resin/VPI (Dry Type) Transformers up-to 2.5 MVA of 11 or 33 kV Class.Our Transformers/services are spread across various developed cities like Hyderabad, Tirupati, Vizag, Chhattisgarh, Vijayawada, Nepal, Warangal, Karimnagar, Khammam, Adilabad, etc...

Industries We Serve

  1. power plants
  2. corporate firms
  3. builders
  4. granite industries
  5. pharmaceutical companies

and many other

Our Clientele

  • RKS Grand Shopping Mall, Kukatpally, Hyderabad
  • Allwin Food Protect
  • M/S.Spencers, Ramanthapur
  • Provident Housing At Rajendra Nagar
  • Sri Chaitanya Mahila Kalasala Chaitanyapuri Hyderabad, 315 KVA Transformer
  • Jain Printers At Khairatabad
  • RR Films, Shalini Theatre Kothapet, Hyderabad
  • Un Limited ( Mega Mart ) Show Room At LB Nagar, Hyderabad
  • M/S BPR Infrastructures P Ltd
  • M/S Allwini Food Protect
  • M/S Laxmi Venkateshwara Cotton Industries
  • M/S Sai Bio Sales
  • M/S.Turbo Heat Industries
  • M/S Sri Lakshmi Technical Services
  • M/S Maheshwari Cotton Industries
  • M/S Salami Industries
  • M/S Shanthi Contructions & Developers
  • SVS Hospital Kachiguda
  • Swagath Grand Hotel, Ramanthapur
  • Yes Mart Attapur
  • Mc Donalds
  • Orient Black Swan Printers At Himayath Nagar
  • Taruni Showroom Building At Kothapet, Hyderabad
  • Annapurna Studios, Film Nagar, Hyderabad.
  • M/S Srinivasa Cotton & Ginning Mill, Warangal
  • M/S Hkm Charitable Foundation.
  • M/S Sai Sri Farms
  • M/S. New Life Laboratories Ltd
  • Mekala Venkatesh Function hall
  • M/S Pavani Ready Mix
  • M/S Someshhwaer Industries
  • M/S Nanda Foods, Unit-2, I.D.A Nacharam, Hyderabad
  • M/S.Pragnashree Health Care
  • M/S Jairam Industries
  • Someshhwar Industries Address: 3/90, Main Road, Dwarakapet, Narsampet, Telangana, Warangal, 506132
  • M/S Co Operative Electric Supply Society Ltd Address: 7/5/5, Tahasil Road, Siricilla, Siricilla, Telangana, Karimnagar, 505301
  • M/S.Vijay Thara Flexi Packaging Pvt Ltd Address: Sy.No.323/A, Rangapur Grammam, Nandigam (V) & (M), Mahaboobnagar District.
  • Mr.L.Sharan Kumar (Contractor) Address: Karimnagar, (Rws For Cpws Scheme At Nampally).
  • Someshhwaer Industries Address: 3/90, Main Road, Dwarakapet, Narsampet, Telangana, Warangal, 506132
  • Maheshwari Cotton Industries Address: M/S Mahaswaries Catton Industries, Verannapet, Cherial, Warangal District.
  • Laxmi Venkateshwara Cotton Industries Address: Ginning Factory At Sy No193/J 193/K 192 B1/2 And 192/B3, Near Manikanta Industries, Enumamula Gorrekunta, Warangal, Andhra Pradesh, 506006
  • M/S.Large Sized Co-Operative Credit Society Ltd Address : Gattududdenapalli, Manakondur (M), Karimnagar District.
  • M/S J Jai Ram, Metpalli(V) Bhemeni(M), Adilabad, Telangana
  • M/S.Kundan Granite Industries Address: Kukunoorpally Village, Kondapaka Mandal, Medak District
  • M/S Volta Green Structures Pvt Ltd Address: M/S Volta Green Structures Pvt Ltd, Sy No.281/Aa, Morangapally Pally Mominpet(M) Vikarabad, Telangana
  • M/S.Classic Hatcheries Pvt Ltd Address: Sy.No.456/E & 456/Ee, Kanfukur Village Of Kandukur Section
  • M/S. New Life Laboratories Ltd. Address: M/S New Life Laboratories S.No:10 Gaddapotharam Jinnaram Medak District
  • Mr.Venulapala Narsaiah Address: Patha Suryapet (V), Athamakur (M), Nalgonda District
  • Mr.Pabati Mallaiah Address: Bheemini , Adilabad District
  • M/S.Satya Sai Electrical Works Address: H.No.22-41/A, Teachers Colony, Hayatnagar -505467, (RWS For CPWS Scheme At Kodurupaka)
  • Sindhu Electricals Iron & Hardware Address: 1/483/2, Madannapet Road, Narsampet, Telangana 506132
  • M/S Sai Bio Sales Address: M/S Sai Bio Sales, Dobipet, Shankarpalli, Telangana
  • Srinivasa Cotton Ginning Mill Address: Raghunathpally Warangal Dist
  • M/S. Venugopal Electrical Works Address: M/S. Venugopal Electrical Works Kummari Bazaar, Suryapet, Telangana
  • Filterbed R.W.S. Karim Nagar District
  • Jackwell R.W.S.Karimnagar
  • M/S Raika Granites
  • Dhanalaxmi Cotton Industries
  • Srinivasa Stone Crusher
  • The Commissioner, Nagar Panc

Brands We Deal In

Our own manufacturing brand:
  • Tejaswini
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Find UsAmbadas Donta (Managing Partner) Tejaswini Industries
3-13-109/1/1, FCI Road, Suryanagar, Mallapur, Hyderabad - 500076, Telangana, India
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