Kolkata, Dec 29 (ANI): People in Kolkata held a candlelight vigil to condemn militant attacks in Assam that left at least 80 dead. The candlelight demonstration was organised by Paschim Banga Rajya Pratibandhi Sammilani (PBRPS) a non-profit organisation working for specially-abled - to protest against militant attacks by tribal guerrillas early this week. The victims of the attacks were mostly tea-plantation workers from other parts of India. On Saturday, life returned back to normalcy as tea plantation workers in Assam returned to work. However, former Mayor of Kolkata, Bikash Ranjan Bhattacharya, during the candlelight vigil said that in recent times this was one of the ghastly attacks on innocent people. Many visually-impaired and specially-abled people were also part of the protest. Assam police say the leader of the National Democratic Front of Bodoland (NDFB), IK Sonbijit, is based in Myanmar, from where he controls his cadres.