Most Indians won't get any sense from billions and trillions. Even millions is a new entry in mainstream. It's not a matter of pride, primarily.
Defence enthusiasts (and many others who deal with very big numbers or foreign items) prefer the English system for obvious reasons. But a normal person (educated) prefers crores and lakhs.
I think that this particular title had the intention to shock the reader with "lakh crores" because it gives the sense of a really big number.
Now leave that topic, I guess.
