A captain always has the final word about the fuel.
I wonder where all the other planes with destination Delhi crashed that day. I guess there must have been quite a few who were not able to land there.
We live in a time where people fly cruising levels solely derived from the FMC, and gas up planes with numbers found on flight plans.
And we are not speaking of a loco, but a national airline.
Then if the story is true, that, once in an emergency, and the decision was made to land in this weather, the pilot made a manual landing, I have no more words at all.