Inquilab Moncho leader Sharif Osman Hadi was shot in Dhaka on December 12 and died six days later in Singapore.
Dhaka Metropolitan Police say prime suspects Faisal Karim Masud and Alamgir Sheikh fled to India via the Haluaghat border.
The suspects are believed to be in Meghalaya’s Tura city; India has not yet responded to the claim.