Nishikanto babu was reffering to just some event which was gonna take place. i guesstagorr is one of their friend.and then Nishikanto babu tells about meeting nateshdutt in a pharmacy.
1
Deepanshi answered this
Yesss..... I feel it is rabindranath tagore.
1
Nidhushan answered this
It was Rabindranath tagore.His birthday was celebrated because this story was in late 90s