Bachchan attended Allahabad's Jnana Prabodhini and Boys' High School (BHS), followed by Nainital's Sherwood College,where he majored in the art stream. He later went on to study at Kirori Mal College of the University of Delhiand completed a Bachelor of Science degree.In his twenties, Bachchan gave up a job as freight broker for the shipping firm, Bird and Co., based in Calcutta, to pursue a career in acting.
Bachchan made his film debut in 1969 as one of the seven protagonists in Saat Hindustani, Though the film was not a financial success, Bachchan won his first National Film Award for Best Newcomer.Bachchan critically acclaimed and commercially successful Anand (1971) followed, where he starred alongside Rajesh Khanna. Bachchan's role as a doctor with a cynical view of life garned him a Filmfare Best Supporting Actor Award. Amitabh then played the role of an infatuated lover in Parwaana (1971) opposite Navin Nischol, Yogeeta Bali and Om Prakash and was a rare instance of him portraying the villain.
This was followed by several films which were not particularly successful at the box office including Reshma Aur Shera (1971). During this time, he made a guest appearance in the film Guddi which starred his future wife Jaya Bhaduri opposite Dharmendra. Noted for his deep baritone voice early on in his career, he narrated part of the film Bawarchi. In 1972, he made an appearance in the road action comedy Bombay to Goa.
1973 saw significant development in Bachchan's career when director Prakash Mehra cast him in the leading role for the film Zanjeer (1973) as Inspector Vijay Khanna. The film was a sharp contrast to the romantically themed films that had generally preceded it and established Amitabh in a new persona — the "angry young man" of Bollywood cinema,a reputation he was to acquire in pictures that followed it. It was his first film as the leading protagonist to achieve box office success and earned him a Filmfare Nomination for Best Actor. 1973 was also the year he married Jaya and around this time they appeared in several films together. Bachchan played the role of Vikram in the film Namak Haraam. His supporting role opposite Rajesh Khanna and Rekha was praised and won him the Filmfare Best Supporting Actor Award.
Bachchan is married to actress Jaya Bhaduri. They have two children, Shweta Nanda and Abhishek Bachchan. In 1974, Bachchan made several guest appearances in films such as Kunwara Baap and Dost, before playing a supporting role in the highest grossing film of that year, Roti Kapda Aur Makaan. Deewar, which earned him a Filmfare Nomination for Best Actor. on August 15, 1975 was Sholay, which became the highest grossing film of all time in India, earning Rs. 2,36,45,00,000 equivalent to US$ 60 million, after adjusting for inflation. In 1999, BBC India declared it the "Film of the Millennium" and like Deewar, has been cited by Indiatimes movies as amongst the Top 25 Must See Bollywood Films. In that same year, the judges of the 50th annual Filmfare awards awarded it with the special distinction award called Filmfare Best Film of 50 Years.
Bachchan has won numerous major awards in his career, including three National Film Awards and twelve Filmfare Awards. He holds the record for most number of Best Actor nominations at the Filmfare Awards. In addition to acting, Bachchan has worked as a playback singer, film producer and television presenter, and was an elected member of the Indian Parliament from 1984 to 1987.Now-a days Bachchan is still busy with his work.You may know his another name is "B B."As far I believe nobody called in Bollywood B.B except Amitabh Bachchan.