Fans started to arrive four hours before kick-off, queuing round the block in the blistering heat to get into the fourth #IAMUNITED fan party, presented by Airtel.
David May made the trip out to join in the celebrations, telling fans about his time as part of the great Treble-winning team of 1999.
Fans gathered around three large screens in the multi-room venue for the game against Swansea, many bringing flags and tributes to Sir Alex. Its white walls were lit red for the occasion, recreating the Theatre of Dreams for Indian fans.
Delhi fan Nandita Jain said: "It's a dream come true for me to be here. The fact that United are bringing things like #IAMUNITED to India is fantastic; it makes us feel so much closer to the club and makes us feel so connected with fans around the world.
"Sir Alex has taught me so much in my life. He taught me to believe in myself, so I just want to say thank you to him for everything he has achieved."
There was also a celebration for Paul Scholes, with fans in Delhi repeating the actions of those in Manchester by giving him a standing ovation as he left the field after 66 minutes, in his final home game before retiring.
Fans expressed their excitement about having such a large party in India, with some students coming out the night before their final university exams, declaring: "United first, university