New Delhi, June 19 -- The ongoing crisis within the Trinamool Congress took a new turn on Thursday with 'party treasurer' Aroop Biswas writing to a private bank seeking restrictions on the operation of the party's accounts. Biswas cited uncertainty over its legitimate leadership amid rebellions and splits by MLAs and MPs.

The move is being seen as a fresh setback for the camp led by former chief minister Mamata Banerjee, coming days after dissident MLAs and MPs challenged the authority of the Trinamool Congress's central leadership following the party's defeat in the assembly polls, and staked claim to being the 'real' TMC.

A two-page letter, addressed to the manager of the bank's Central Plaza branch in Kolkata, made rounds on social m...