India, Jan. 14 -- Former All Assam Minorities Students' Union (AAMSU) president Rejaul Karim Sarkar on Wednesday resigned from the Congress days after joining it, citing differences with the party's state leadership.

In a letter to state Congress chief Gaurav Gogoi, Sarkar accused Debabrata Saikia, the legislature party leader, and parliament member Pradyut Bordoloi of behaving like Bharatiya Janata Party (BJP) agents. Sarkar said their conduct and public positions pained him and made it impossible for him to continue in the party without compromising his conscience and dignity.

Sarkar, who joined the Congress on Sunday, triggered a controversy by talking about turning Assam's Sivasagar into Dhubri and Dhubri into Sivasagar, Barak Valle...