India, June 16 -- Technical snags and a bomb threat resulted in three India-bound Boeing 787 Dreamliner aircraft returning to origin after takeoff in the last 36 hours. The planes were bound for Chennai, Hyderabad and Delhi from other countries.

This comes days after an Air India Boeing 787 Dreamliner aircraft bound for London crashed in Ahmedabad, shortly after takeoff, killing 241 of the 242 passengers on board.

In the most recent case, a Delhi-bound Air India AI-315 Boeing 787 Dreamliner from Hong Kong returned to its origin airport within an hour of takeoff after the pilot suspected a technical snag.

The airline said in a statement that the flight landed safely in Hong Kong and all passengers disembarked from the plane. An inspecti...