India has been struggling to get a nuclear submarine in the water for some time. The technical challenges of "shrinking" a nuclear power plant to get one to fit on something the size of the submarine were daunting. On 26 July, 2009, India launched INS Arihant to gain them entry into the nuclear submarine club. That date might be the one asked about here, if something "exact" is being sought.
From Wikipedia: Today, six countries deploy some form of nuclear-powered strategic submarines: the United States, Russia, France, the United Kingdom, People's Republic of China, and India Several other countries, including Argentina and Brazil, have ongoing projects in different phases to build nuclear-powered submarines.
The US, Russia, Great Britain, France, China and (recently) India have nuclear submarines.
India uses fossil fuels such as nuclear and coal.
no
INS- Arihant (first indigenous nuclear powered submarine),, INS- chakra (first nuclear submarine).
15
ONE
Yes, India has nuclear weapons.
As of 2010, India has 20 Nuclear Reactors.
No, India has both civil nuclear power reactors and nuclear weapons
no you can not only if you are a citizen of india