Maybe Indian navy should learn the basics first.
When I started working in IT company then I made few mistakes even while doing basic works.
Some people questioned on my ability and even forced to move from a project because my Team lead was not happy..
But now, after few years.... I got a role of specialist cyber defense.....
So basically means that if you work then possibly you will do mistakes and learn.... PN has maximum 2-3 submarines at any time...
There are many mistakes and incidents happened and happening around the world those are operating such critical technology like SSBN and a large number of submarine fleets... Those navys learn from their past mistakes and move forward..
Do not expect any incidents if they don't have such technology and a large fleet.. Thanks.