Over 50 Congress legislators from Punjab have written to party president Sonia Gandhi seeking that Amarinder Singh be replaced as chief minister, highly placed party sources said on Saturday ahead of a crucial meeting of the Congress Legislative Party in Chandigarh.

As crisis intensifies once again in the Punjab unit of the party, Amarinder Singh is also learnt to have talked to Gandhi and expressed his anguish over his repeated "humiliation". There was no official confirmation about the chief minister calling Gandhi.