- Mr Kumar's supporters roughed up the two men who showed him black flags
- The men were detained by Bihar police for questioning
- Mr Kumar was arrested on sedition charges in February, released on bail
The two men holding flags, who also raised slogans of "Bharat Mata Ki Jai" were roughed up, allegedly by members of Mr Kumar's team. Later the police, who detained and questioned them, said they were from a little-known group called "Youth Swaraj" and said to be members of Rashtriya Swayamsevak Sangh, the ideological mentor of the BJP.
The JNUSU president, who was addressing a gathering when the incident occurred, said he was not scared of people who oppose him or try to disturb his functions. "I am not scared of anything -- whether you hurl a shoe or a stone.... They want to disturb my programmes as they are uncomfortable with my questions," Mr Kumar said.
"I was speaking and some people walked out because these people don't understand the difference between Desh Bhakti and Modi Bhakti," he added.
Mr Kumar, whose arrest on sedition charges in February had triggered international headlines and criticisms that the government was over-reaching, had targeted the Prime Minister regularly since.
The student leader, who hails from Begusarai district of Bihar, is on a two-day tour of the state and met both Chief Minister Nitish Kumar and RJD president Lalu Prasad yesterday.