The convoy of Tripura former chief minister Manik Sarkar was attacked at Bishalgarh on Friday evening. Vehicle of senior CPM leader Narayan Choudhury, who was part of the convoy, was allegedly vandalised by miscreants while Mr Sarkar was addressing a meeting, reports news agency ANI.
Additional police force was deputed outside the office.
Kerala Chief Minister Pinarayi Vijayan condemned the attack, saying that democratic minds must rise against the undemocratic and fascist forces.
"It is shocking to know about the attack on former Tripura Chief Minister Manik Sarkar and other senior CPM leaders of Tripura. Com. Manik Sarkar is one of the prominent leaders in this country. We condemn this attack. All democratic minds must rise against the undemocratic & fascist forces who have carried out this attack," Mr Vijayan wrote on Facebook.
Manik Sarkar is four-time Chief Minister of Tripura and Politburo member of the Communist Party of India-Marxist (CPI-M). He is among key political figures in Tripura, which has been ruled by the Left Front since 1978 with a five-year break between 1988 and 1993, when the Congress and its tribal party ally Tripura Upajati Juba Samity were in power.