Sorry for the late post. Got busy with work . Anyways here is my experience: while leaving from Bangalore followed Saurabh's advice , packed my mavic air in check-in luggage declared it at airline's ticket counter and got that baggage marked fragile, carried all three batteries and controler in my hand baggage faced no issues at all. One other thing that I did was that I dismantled the propellers and packed them in a separate case along with extra propellers . While coming back I followed the same procedure but this time I didn't declare it instead just asked them to mark it fragile as I was also carrying liquid in another check-in luggage. So two check in luggage both marked fragile . Arrived home with no issues and everything intact. I did get chance to shoot in goa where there was less public and police like Anjuna beach but had to be cautious and that did take away that fun experience. I also flew it around my regular shack in calangute beach but it started getting attention on other occasions my wife wouldn't let me fly it as she didn't wanted us to get in trouble or loose an expensive toy lol. To sum it up it was a pleasant experience but could have been more fun if I had time to explore some good and peaceful beaches. May be next time.hope this helps you guys.
Really helpful post. People generally feel lazy to update once their problem is solved. Thanks a lot.