Post office in Delhi

Hi,

I will be in Delhi shortly but only have time on a Sunday where I am able to get to a post office to buy stamps and send postcards. I am wondering what is the best post office to go to on a Sunday? Or are there post offices open after 7pm where you can buy stamps and send postcards. I am staying near the Paharganj district.

Cheers,
Matty

The only Post Office open on Sunday from 10:00 to 13:00 is New Delhi GPO:
https://www.google.com/maps/place//data=!4m2!3m1!1s0x390cfd4ddb167223:0xf0dcc0465569af4?sa=X&ved=1t:8290&ictx=111

I think philately bureau is closed on Sunday. If possible get someone to buy for you onb working days.