He might be a superstar today, but Bollywood actor Aamir Khan has no qualms in admitting that he has undergone various punishments during his education days - from getting caned to kneeling down for the whole day.

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"When in school, kneeling down in front of the principal's office was a regular feature. I have also been caned a couple of times. It is strange that when you get caned, you don't realise the pain instantly, but after two seconds it shoots so badly... It's awful," Aamir told reporters here.

"I used to be more interested in sports and hence used to always forget doing my homework. Also, poor marks used to create problems for me. I used to get scolded very often," he added.