प्रयागराज एक्सप्रेस - जो भी हो तुम खुदा की कसम; लाजवाब हो

I'm in super tensed about my next train trip.
I've travelling to Delhi in Rajdhani Express with my 56 year old mother on 11 Apr. There's very hot and humid in Delhi during noon. If something happens, what regular medicine should I carry for emergency purposes?

And please tell me, what precautions should I have for going to Delhi?

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