some information i find useful to share from
Prasun K. Sengupta blog
6) In addition to the two indigenous 700mW PHWRs now coming up at Rawatbhatta (Rajasthan) & two more at Kakrapar (Gujarat), financial sanction has just been accorded for two more at Gorakhpur (UP), two at Kaiga (Karnataka), two at Mahi Banswara (Rajasthan), two at Chutka & two at Bhimpur (both in MP).
7) Financial sanction has just been accorded for BARC & NPCIL to co-develop an indigenous 900mW PWR by upscaling the 83mW LWR that was developed for the S-2/Arihant, S-3 & S-4 SSBNs.
8) Financial sanction has been just accorded for BARC to develop a 190mW LWR by upscaling the 83mW LWR. This 190mW LWR will also be offered for installation on the projected IAC-2, & on the S-5, S-6 & S-7 SSBNs.
9) Plans are now afoot to seek sanction for an advanced (but upscaled to 150mW) derivative of the 83mW LWR, this being for the IN’s projected reqmt for nine SSNs similar to the Barracuda-class SSN from DCNS.