Megastar Amitabh Bachchan says stage is the most trying and difficult of all performing arts and that it would be wonderful to get back to it.

The thought came to the 70-year-old after he came back from watching a play at the Prithviraj Theatre at the weekend. He says the experience reminded him of work in school and college.

"It would be wonderful to get back to it, but now it is frightening to get up there... a controlled environment is suitable to us today," Big B posted on his blog.

"We can make countless mistakes not so on the platform of the stage ... not so also the immediate reaction of the audience, not so also the immediate reaction and applause of the people sitting in front of you. That attraction is something only those that experience it can say," (sic) he added.

Acting on stage is tough job.

"The stage is the most trying and difficult of all performing arts, a wonderful place to learn to get initiated of what may follow some of the greats have migrated from the stage to greatness of their own elsewhere, but have never forgotten the days of the smell of the wood work," he wrote.

Bollywood actors Naseeruddin Shah, Shabana Azmi and Anupam Kher are often seen entertaining live audiences with their plays.