cultural festivals are also organised by the IITs and last three to four days. These include Spring Fest (IIT Kharagpur) (also known as SF ), Rendezvous (IIT Delhi), Thomso & Tarang (previously Rave) (IIT Roorkee), Mood Indigo (IIT Bombay) (also known as Mood-I ), Saarang (IIT Madras) (previously Mardi Gras ),