Okay, that may be the case, but the principal contributor is surely tax and regulation incentives when you want to access the second biggest Asian market: in this case, the massive customs duty bypass by building in India.
Specifically: Local production saves Apple 22% import duty.
That's a huge savings! If "Made in India" is anything like "Made in China" then it just involves bringing parts from other countries for final assembly, not even necessarily the highest value-add part of manufacturing.
