So far, out of the 359 derbies played between Mohun Bagan and East Bengal (including exhibition matches), Mohun Bagan won 114 games, lost 127 of those and 118 of the games have ended in a draw.
Out of these 359 games, Mohun Bagan has scored 4 or more goals against East Bengal in 7 games while East Bengal has scored 4 or more goals against Mohun Bagan in 5 games. Details of these 12 games are given below -
September 5, 1934 - Darbhanga Shield - Bengal Zone - India Section Semi-Final played at the Common Ground of Mohun Bagan and East Bengal
Mohun Bagan (Amiya Deb 4) 4-1 East Bengal (N. Majumder)
August 6, 1937 - Raja Memorial Shield Final played at the Common Ground of Mohun Bagan and East Bengal
Mohun Bagan (Asit Ganguly 3, S. Sen) 4-0 East Bengal
August 22, 1944 - Coochbehar Cup 3rd Round played at the Common Ground of Mohun Bagan and East Bengal
Mohun Bagan (Amal Bhattacharjee 2, Nimu Bose, N. Roy own goal) 4-2 East Bengal (Fatik Sinha, S. Deb Roy)
August 26, 1945 - Exhibition Match played at the Howrah Divisional Sports Ground
Mohun Bagan (Nimu Bose 2, Bhowmick, S. Deb Roy) 4-1 East Bengal (Mahabir)
August 22, 1947 - Coochbehar Cup, Knockout 1st Round played at the Common Ground of Mohun Bagan and East Bengal
Mohun Bagan (Nayar 2, Salem, N. Chatterjee) 4-1 East Bengal (Saleh)
August 17, 2007 - Calcutta Football League played at the Salt Lake Stadium
Mohun Bagan (Jose Barreto, Venkatesh 2, Lalampuia) 4-3 East Bengal (Alvito 2, Edmilson)
October 25, 2009 - I-League played at the Salt Lake Stadium
Mohun Bagan (Chidi Edeh 4, Manish Maithani) 5-3 East Bengal (Yakubu 2, Nirmal Chhetri)
List of derbies where East Bengal scored 4 or more goals against Mohun Bagan -
1936 - Calcutta Football League played at the Common Ground of Mohun Bagan and East Bengal
East Bengal (Laxminarayan 2, Murgesh, Prasad) 4-0 Mohun Bagan
September 30, 1975 - IFA Shield Final played at the Mohun Bagan ground
East Bengal (Shyam Thapa 2, Surajit Sengupta, R. Mukherjee, S. Sanyal) 5-0 Mohun Bagan
July 13, 1997 - Federation Cup Semi Final played at the Salt Lake Stadium
East Bengal (Baichung Bhutia 3, Nazimul Haque) 4-1 Mohun Bagan (Chima Okorie)
November 27, 2005 - IFA Shield Group League played at the Salt Lake Stadium
East Bengal (Alvito 2, Chandan Das, Mike Okoro) 4-1 Mohun Bagan (Akim)
September 6, 2015 - Calcutta Football League played at the Salt Lake Stadium
East Bengal (Do Dong 2, Rahul Bheke, Md. Rafiq) 4-0 Mohun Bagan