The party leadership has recently issued him a show-cause notice seeking to know his clarification on his previous letter to the bank seeking to freeze the accounts.
Starmer said the process of picking a new Labour Party leader would be launched in July and he would remain as prime minister until his successor is chosen, to be in place in September.
Maharashtra minister Pratap Sarnaik said the MPs have written to the Lok Sabha Speaker; UBT Sena leaders remained cautious as speculation over defections intensified.