So it seems they selected Israeli options.
India has long been drooling at the feet of the Zionist entity, so this makes sense. Hindu nationalists have cited the genocide in Gaza as a positive example to use against Pakistan. Of course, the usual impotent fantasies, but it speaks to a common mentality. This deal also consolidates the shift away from Russia as an arms supplier that began under Modi's first term.
Incidentally, I wouldn't be surprised if there were "under-the-table" conditions. Indians have been caught spying for Mossad in the gulf area.
As an aside, it's actually crazy that a country of barely 10 million people is supplying tech to a country of 1.5 billion. But here we are.