"She had requested a time when she could call back as Ravi Shankarji had wanted to talk to me. He was keeping unwell she had said and was to undergo a surgery on Thursday.
"Due to the time difference, I was unable to connect with her immediately and it was only the next day when I called back that she spoke most endearingly and put me on to the great maestro! I was speaking to Pandit Ravi Shankar for the very first time ever on the phone," he posted.
The 70-year-actor says Ravi Shankar spoke to him with great warmth and also appreciated his work.
Amitabh says "an entire life, an era, a most incredible period in the history of classical music in India has come to an end".
Pandit Ravi Shankar passed away in the US Tuesday. He was 92.