Congress Vice-President Rahul Gandhi was on Saturday shown black flags during his visit to the Jawaharlal Nehru University (JNU) campus to meet students protesting for the release of students' union President Kanhaiya Kumar.
The protestors raised slogans like "Rahul Gandhi go back" in the varsity.
Besides Gandhi, several leaders of the Congress and the Left parties, including deputy leader of Rajya Sabha, Anand Sharma, CPI politburo member Sitaram Yechury, D Raja, also gathered on the JNU campus.
Scores of students have been demanding the release of Kumar, who was sent to three-day police custody yesterday.
Gandhi had yesterday said that the Modi government is "bullying" an institution like JNU and it is "completely condemnable".
Gandhi at the same time asserted that anti-India sentiment was "unquestionably unacceptable".
His remarks came after the arrest of JNU students' union President in a sedition case over a protest event at the campus against hanging of Parliament attack convict Afzal Guru, which sparked massive outrage among students.