Mood Indigo IIT Bombay | 28,337 followers on LinkedIn. Mood Indigo is Asia's largest college cultural festival conducted annually by the student body of IIT Bombay. | Mood Indigo, popularly known as Mood-I or MI is the annual college cultural festival of Indian Institute of Technology, Bombay. Initiated by a bunch of music enthusiasts with a meagre amount of Rs. 5000 in 1971, it has become Asia's largest college festival in it's successful journey of 53 years. Over 147k people attended 240+ events held in the last year's fest which had a reach to over 4000+ colleges.