Thousands of people defied curfew in Guwahati on Thursday and took to the streets, prompting police to open fire, even as protests against the contentious Citizenship (Amendment) Bill intensified in Assam.

The Railways has suspended all local train services in Tripura and Assam, and short-terminated long-distance trains at Guwahati following protests in the two states over the passage of the Citizenship (Amendment) Bill in Parliament, a railway spokesperson told PTI on Thursday.

The Supreme Court on Thursday said there should be an "impartial inquiry" into the encounter killings of the four men accused in the gangrape and murder of a veterinarian in Telangana.

The Indian Union Muslim League (IUML) moved the Supreme Court on Thursday challenging the Citizenship (Amendment) Bill, a day after it was passed in the Rajya Sabha completing the legislative process for giving Indian citizenship to non-Muslim migrants from Pakistan, Afghanistan and Bangladesh.

The house of Union minister Rameswar Teli in Assam's Duliajan was attacked by anti-Citizenship Bill protesters on Wednesday night, officials said.

Against the backdrop of violent protests in Assam opposing the Citizenship (Amendment) Bill, Prime Minister Narendra Modi assured the people of the state on Thursday that they have nothing to worry about the new law.

The people defied curfew in Guwahati on Thursday morning to protest against the Citizenship (Amendment) Bill as the situation remained tense throughout Assam, with the Army conducting flag march in the city.

Mumbai: A Maharashtra cadre IPS officer on Wednesday said he has decided to resign from the service as protest against the "blatantly communal and unconstitutional" Citizenship (Amendment) Bill.