Subsidiaries :

1. Chemical Terminal Trombay Ltd.
2. Af-Taab Investment Co. Ltd.
3. Powerlinks Transmission Ltd.
4. Tata Power Trading Co. Ltd.
5. NELCO Ltd.
6. Tatanet Services Ltd.
7. Maithon Power Ltd.
8. Industrial Energy Ltd.
9. Industrial Power Utility Ltd.
10. Industrial Power Infrastructure Ltd.
11. Coastal Gujarat Power Ltd.
12. Veltina Holdings Ltd.
13. Bhira Investments Ltd.
14. Bhivpuri Investments Ltd.
15. Khopoli Investments Ltd.
16. Energy Eastern Pte Ltd.
17. Trust Energy Resources Pte Ltd.
18. Tata Power Delhi Distribution Limited.
19. Vantech Investments Ltd.
20. PT Itamaraya Tbk.
21. Tata Power Green Energy Ltd.
22. Dugar Hydro Power Ltd.

Joint Ventures :

1. PT OTP Geothermal.
2. PT Arutmin Indonesia (PAI)
3. PT Kaltim Prima Coal (PKPC)
4. Indocoal Resources (Cayman) Ltd. (IRCL)
5. PT Indocoal Kalsel Resources (PIKR)
6. PT Indocoal Kaltim Resources (PIR)
7. Tubed Coal Mines Ltd (TCML)
8. Tata BP Solar India Ltd. (TBSIL)
9. Mandakini Coal Company Ltd. (MCCL)
10. Dagachhu Hydro Power Corporation Ltd. (DHPCL)
11. Candice Investments Pte. Ltd.
12. PT Nusa Tambang Pratama
13. PT Marvel Capital Indonesia
14. PT Dwikarya Prima Abadi
15. PT Kalimantan Prima Power
16. OTP Geothermal Pte. Ltd.
17. PT Citra Prima Buana
18. PT Guruh Agung
19. PT Citra Kusuma Perdana
20. PT Sorik Marapi Geothermal Power

Associates :

1. Yashmun Engineers Ltd.
2. Tata Ceramics Ltd.
3. Panatone Finvest Ltd.
4. Tata Projects Ltd.
5. ASL Advanced Systems Pvt. Ltd.
6. The Associated Building Co. Ltd.
7. Rujuvalika Investments Ltd.
8. Hemisphere Properties India Ltd.
9. Brihat Trading Private Ltd.
10. Nelito Systems Ltd.