Upto now nuclear strike role has been reserved for medieval ground attack fighters like SEPECAT Jaguar. I think India should try giving that responsibility to the newly confirmed rafales or even HAL Tejas (however it is not practical considering it's small payload).
in terms of current world scenario, it is an unpleasant truth but please bear in mind that modern conflicts are not total wars like ww2 or ww1 where the entire military capability of a nation is tested;in a short sharp exchange i think it will be a stalemate;however if things escalate then watch...