im going on a hunch here saying that the indigenous aip is not yet ready and would be ready after the 6th ship is built so the induction of 3 more subs is meant for the indigenous aip's and to increase
either that or theres a delay in the 75i
None of that, your hunch is off the mark.
It means something else; the first Scorpene, INS Kalvari is on her sea-trials now. This indicates that they are proceeding well, with the IN being happy. They will want to use the Scorpene line to make up for the slippage in the acquisition plans.