Bollywood superstar Shah Rukh Khan's much-awaited autobiography is almost complete and he is currently working on an unfinished chapter on Kolkata

'I keep writing. The chapter that I haven't written yet is on Kolkata. While working very hard on 'Jab Tak Hai Jaan', I got no time, but I will start writing, ' Khan, who is also the brand ambassador of the state, told reporters here. 'I don't want anything to be left out of which I have lovely memories, ' he added.

The autobiography is reportedly named 'Twenty Years in a Decade' and begins from his childhood and takes readers through a phenomenal journey of how he started his acting career in 1988 as a television actor in 'Fauji' and 'Circus' before debuting on the silver screen in 'Deewana'.

The 47-year-old actor, who also owns the IPL franchisee team Kolkata Knight Riders (KKR), considers the city of joy as his second home and also endorses a number of city-based companies. Praising the intellect and love for art, culture, literature and cinema of the state, Khan said some of the greatest Indian films come from Bengal.

When asked about his chances of acting in a Bengali film he said he would be honoured to work with Bengali directors but since he does not speak the language it would be difficult for him. Khan inaugurated the 18th Kolkata International Film Festival along with Amitabh Bachchan, Anushka Sharma and Katrina Kaif yesterday.