Shah Rukh Khan is working round the clock for 'Zero' in which he will be seen playing a dwarf character. Shah Rukh will be seen romancing Katrina Kaif and Anushka Sharma in this flick helmed by Anand L Rai. Shah Rukh Khan has not confirmed his upcoming projects post 'Zero' But if sources to be believed SRK will start prepping for the third installment of very famous 'Don' series. These series were directed by multi-talented Farhan Akhtar and third will be helmed by him only. If rumors to be believed then Shah Rukh liked the script of the third installment and he gave a thumbs up to it. Other starcast of Don 3 isn't decided yet. Deepika Padukone and Priyanka Chopra are in talks to do female lead for the Don 3. “Don has been a successful film. Don 2 turned out to be a hit as well, thus ensuring that the franchise can hold good. So, it is not just the makers — producer Ritesh Sidhwani and director Farhan Akhtar who are keen to take the film ahead. Shah Rukh Khan too has a sure-shot hit when he works in that film. There are already a lot of fans wanting to see the third part, which makes it a much-awaited project,” a source told a leading daily. Both producers Farhan Akhtar and Ritesh Sidhwani confirmed the third installment of Don 3, Recently Ritesh quoted, “We are thinking about Don 3 and we are thinking very hard on it. We have found the right idea, it's being written now. We will make an official announcement soon.” Farhan too had confirmed earlier, “Are we going to make it? The answer is yes. I don't exactly know the time.” We hope that Don 3 will go on board soon and we will see Shah Rukh Khan's dishy & grey avatar soon.