Shaurya,oui,the relationship is much deeper than what appears on the surface. There was a report quite some time ago when the second lease broke,that concluding it would be well if Ru were given the collaboration for the 6 SSNs.It would also make eminent sense to have a common thread of design,eqpt.,etc.,running through the SSBN,SSGN (lease) and SSN programmes,esp. as the Chakra was also meant to train our submariners in operating an N-sub.With the second SSBN launch expected/announced anytime now,and very welcome news of the 3rd Akula planned,the IN's N-subs programme appears to be making excellent progress.
One intriguing point.The IN team inspected two Akula subs/hulls.Could it be that both are in the "basket"? Would make even more sense for both (3&4) modified.Ak-2 was supposed to be the "Kash-a-lot" (translates into a "lot-of-cash"
).The Samara is the much younger of the two,but who knows what the hull conditions o both are.The fact that both have been taken to the yard indicates that both will be modernised.
However, sources have told ThePrint that the two Project 971 submarines that are presently docked at Zvyozdochka shipyard in Severodvinsk are the Samara (K 295) and Bratsk (K 391), both of which were transported there in 2014. Indian teams are believed to have inspected both hulls.
If an Indian team is embedded at Sevmash,then the team could work hands on with the second sub almost simultaneously ,while the first is being built by the Ru team.That would give us excellent N-sub building human skills.The team ,even teams by rotation,can then return later to build the SSN class.