Cancelling now will be a bad idea.
One is in Sea Trial (INS Kalvari) & other is ready for launch (INS Khanderi), Two are under construction (S52 & S53) that make Four out of Six. If we cancel now maintaining 2 submarine that are ready will be less economical . Our own shipyards will lose business . A lot of factors here if GoI cancels this deal.
Conventional submarines of India be it Kilo or 209 are over 3 Decades old (
Not like this), so our Navy needs New Subs if cancelled new selection will take time then Red Tapism of India you Know we are talking about 10-15 more years.
We cannot actually say anything until we see all Docs ourselves but as leak happened in 2011 it is unlikely a lot of things for Indian variant are compromised as they were being manufactured at that time so How come manuals are there before Sub is done building?
It may there due to being similar to other scorpene class subs malaysia ,chile navy operate or may be forged to get Media Attention?