Bharat Sanchar Nigam [BSNL] — Blocking my lost postpaid sim

Address:	Allahabad, Uttar Pradesh, 211006
Website:	bsnl.co.in

My father's phone was lost last night, on 6th july 2017, it was a bsnl postpaid sim, mobile number is [protected] on the name of Prabeer Kumar Bose, my father, on Redmi 4a mobile phone dark grey color dual sim.

My father works in Jamuna Enterprises, Civil lines, a distributor of Bajaj interio, as a an accountant/cashier.
He picked up the phone last night, and also verified his company camera on 7th july morning, when he went to the office, he lost that phone on the way near by my home in sabji market at allahpur near kidwai nagar matiyara road, while he was bending down to take vegetables, his phone might have slipped from the shirt pocket.

This he identified when he came back home after coming back from the sabji market.
Kindly block the sim, and allow to have a new replaced sim on the same number. Also, send a confirmation on [protected]@gmail.com or [protected]