The 75-year-old star remembered Khanna in his blog, after he paid homage to him at last night's Star Screen Awards here.
"Remembering a friend that has left us before time is painful and most sad... Our condolences and prayers for his soul..." wrote Bachchan, alongside his picture giving a tribute to Khanna.
The duo had worked together in several films such as "Amar Akbar Anthony", "Here Pheri", "Parvarish", "Muqaddar Ka Sikandar", among others.
Khanna passed away on April 27 due to cancer at the age of 70.
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