Delhi

• Power grid corporation ltd.
• ECE Industries Ltd.

Bhopal

• Bharat Heavy Electricals Ltd.,
• Crompton Greaves Ltd., Malanpur,
• Crompton Greaves Ltd., Mandideep

Jaipur

• Rajasthan Transformers Ltd.

Jhansi

• Bharat Heavy Electricals Ltd.

5

Ahmedabad

• Transformers & Rectifiers India Ltd.
  

Allahabad

• Alstom Ltd., Naini
• GEC Alsthom India Ltd.

Vadodara

• Asea Brown Boveri Ltd.
  Voltamp Transformers Ltd.

Calcutta

• GEC Alsthom India Ltd.

Thane

• Bharat Bijlee Ltd.

Pune

• CTR Manufacturing Ltd.
• Kirloskar Power & Equipments Ltd.
• Voltas(Kirloskar Power & Equipment Ltd.)

Mumbai

• Crompton Greaves Ltd.
  

Bangalore

• Asea Brown Boveri Ltd.,
• Kirloskar Electric Co.Ltd.

Chennai

• Andrew Yule & Co.Ltd.,
• Indotech Transformers Ltd.

Angamally

• Transformers & Electricals Kerala Ltd.

Cochin

• Transformers & Electricals Kerala Ltd.

Nashik

• Crompton Greaves Ltd.

Jalgaon

• Emco Ltd.

Aurangabad

• Crompton Greaves Ltd.

Ghaziabad

• N.T.P.C. Group, Vidyut Nagar

Jammu Kashmir

• National Hydroelectric Power corporation ltd.