Prime Minister Narendra Modi was shown black flags in at least two places in Guwahati on Saturday for the second consecutive day over the contentious Citizenship (Amendment) Bill.
Modi, who was on his way to the airport from the Raj Bhawan, was shown black flags by protesters belonging to the Asom Jatiyatabadi Yuva Chhatra Parishad (AJYCP) at Machkhowa area.
Minutes later, a group of students showed black flags to the prime minister when his huge convoy was passing through the Gauhati University at Jalukbari area.
Members of both the groups were detained, police said.
While hundreds of Gauhati University students waved black flags at Modi in Jalukbari area, activists of the Krishak Mukti Sangram Samiti (KMSS) and AJYCP did the same at Adabari and Fancy Bazar areas.
Members of the All Assam Students Union (AASU) were also seen waving black flags to the prime minister and shouting slogans as his convoy crossed the AASU headquarters on the Mahatma Gandhi Road at Uzan Bazar.
Members of the All Assam Students Union (AASU) showed black flags to Prime Minister Narendra Modi and shouted slogans against the Citizenship Bill as he travelled to Raj Bhavan from the airport after he arrived in the city on Friday evening.
Modi is on a two-day visit to the Northeast.
AASU members were seen waving black flags to the prime minister at Gauhati University gates as he passed the area on his way to the Raj Bhavan around 6.30 pm from Lokopriya Gopinath Bordoloi International Airport.
Another group of AASU members waved black flags as Modi's carcade whizzed past several minutes later at its headquarters on M G Road.
Slogans like 'Modi go back', 'Scrap Citizenship Amendment Bill', 'Joi Aai Asom' (Glory to Mother Assam) were raised.
The demonstrators were restricted to the AASU office compound by the police who locked its gates, claimed AASU chief advisor Sammujal Bhattacharya.
The bill has been passed by the Lok Sabha on January 8 and is awaiting nod from the Rajya Sabha. It is being opposed by majority of the Northeastern states.