Nuclear reactors currently under development.
1. FBR
2. MSS
3. AHWR
4. LWR(light water reactor)
5. Very high temperature reactor
6. Accelerator driven sub critical reactor in collaboration with USA.
Work is going on to develop indian very hight temperature reactor it will be our fourth 4th gen reactor after FBR, MSS and AHWR.
https://www.researchgate.net/publication/317193262_High_temperature_reactor_technology_development_in_India