Well, Delhi being socked in at this time of year is a surprise to no Air India pilot.
Same for JAI.
As far as I can tell, they don't do the ' destination unworkable, so get two workable diversions' routine as we do in the UK.
In India your dest has to be forecast to be ok, or you mustn't go.
Fuel policy in India is different. There's always 'holding' fuel. ( good!)
But there's never 'final reserve' fuel. (Not so good....)
So launch with min fuel, and you might think you have holding fuel. But if you divert, then hold, you land 'tanks dry' as there's no final reserve.