IOC and FOC are defined by the PSQR document while Fully certified is FOC + 1 Million Francs in shell corp. Hope that clarifies.Depends on what is considered "IOC". For a trainer you need a fully certified aircraft, or else there's no point, it'll just be a flying taxi.
And the IAF is not going to order anything in high double digits for IOC anyway. Case in point, 20 LCA, 10 LCH etc.
HAL needs to stop using silly tricks to put pressure on the IAF. This govt is not going to stand for it.
@Falcon