East Bengal fell 1-4 to South Korea's Hwacheon KSPO in their second Group B match of the AFC Women's Champions League in Kolkata on Wednesday.
Despite Fazila Ikwaput opening the scoring for East Bengal, Hwacheon responded with four goals in the second half to secure the win.
East Bengal remain in third place with three points and need a result against 4.25 SC on Saturday to secure a quarter-final berth.