Really sad news this is
Is the something to do with the weather over the Bay of Bengal yesterday ? It is monsoon season here with some occasional rains.
I live in Chennai and most of my east-bound flights are turbulent over this mass of water and gets smoother once I get near land.
I was a SQ flight as Pax recently from MAA to SIN and it was raining during our departure and the seat belt sign was on for nearly 2.5 hours on a 4 hour flight!