The Indian Olympic Association (IOA) has taken the first step by officially submitting the Letter of Intent to the Future Host Commission of the International Olympic Committee (IOC) on October 1 expressing India's interest in hosting the Olympic and Paralympic Games in 2036.
Delhi will be good as football and cricket stadium there even Mumbai also but I know kolkata never get any CWG or Olympic host event ( hope even if ahmedabad host events should spread across city's like Paris Olympics France done )