Is in jee mains 95 and above percentile good and can we get good nits

Yes, 95 percentile in JEE Main is a good score and shows strong preparation.
With this percentile, you can expect a rank around 45k–55k, which opens several options.
Getting top NITs with CSE or ECE is difficult, but not completely impossible with quotas.
You can get mid-tier or newer NITs, especially in non-core branches.
Your chances improve a lot if you have a home-state or category reservation. Overall, it’s a solid score and a good base to aim for better options in further attempts.