I'll be doing a railfanning trip from 02951 and 01222 on 23rd and 24th respectively both journey and return to and from Delhi. Is RTPCR compulsory while returning to CSMT ? I'll be staying only for 7 hours in Delhi. I know it is covid times but the train is empty and I'll be travelling alone. I plan to do a walking tour of Delhi from New Delhi to Nizamuddin before boarding return train from Nizamuddin. Please guide me.