Well, it's really hard to pen markets for a new entrant without an established reputation (on the contrary - established slightly doubtful reputation).
Normal way for such entrances is either doing it through cooperation and alliance networks(Korea way - but India, despite it slight lean towards the west, is non-aligned), or to those in dire need of weapons (Tejas has far too many US/Israeli components to even in most cases, and warm Indian relations with Russia worth more than any conceivable Tejas deal).
That leaves only small sweetened deal with token airforces(preferably dependant).
Frankly speaking - they probably should establish at least a few squadrons of mk.1A(which they are actually trying to sell), and visibly use it for some COIN. It'll at least ensure that someone they bribe （yes, sounds bad. yes, everyone is doing that) can tell that he buys something that works. Right now that hypothetical official simply can't.
