Tendulkar, who landed in Hyderabad late last night with wife Anjali and two kids, was confined to his room at the Grand Kakatiya hotel.
"He did not even have breakfast. No one was allowed to enter his room," a hotel manager told PTI.
There was speculation since yesterday that the Mumbai Indians captain would not celebrate his birthday in view of Baba''s health condition.
News of Baba''s demise this morning apparently came as a shock to Tendulkar.
A ''Do Not Disturb'' sign was hung on his hotel room door since the news of Baba's demise came and Tendulkar did not even meet his teammates, the hotel manager said.
Only Mumbai Indians owner Nita Ambani was said to have met Tendulkar and consoled him.
Mumbai Indians will take on Deccan Chargers in an IPL match match at the Hyderabad International Cricket Stadium this evening but it is not yet clear whether Tendulkar will play the match.
None of the Mumbai Indians players or officials could be contacted for a comment.