"My father had first pointed out the humble nature of Amitji. I was too young to understand this aspect then but have been struck by his humility every time I have met him," the Bharat Ratna awardee said in a message here.
Heaping praise on Big B, Tendulkar also said the actor's hunger to achieve more was admirable.
"His hunger to achieve more is also admirable. Amitji keeps pushing the boundaries and reinventing himself," he said.