Finally managed to talk to him (Uttam Singh, Surjan Singh Bhandari's brother)...he confirmed that he has received the amount mentioned below plus an additional about Rs 10,000(sent initially as trial).
He's been to Dehradun and Delhi recently and hence was unreachable. He wants us to keep the RTI on hold. I'll call him in another about month or so and check the status.
Multiple folks at Microsoft in the USA had raised around Rs.60918 which has been directly credited to the account of the late martyr's mother.
A big thank you to you all, who took the trouble of reaching out to a bereaved mother.