The Central Investigation Bureau of Nepal Police made public former Maoist combatants Ram Pudasaini, Indra Bahadur Shahi, Sudip Karki and Kamal Budhathoki at a press conference Thursday.[break]
Senior Superintendent of Police Kamal Singh Bam, officiating Chief of the Bureau, said Tarayan Nidhi Pant also known as Ramesh Pant had masterminded the attack.
Pant is Chairman of All Nepal Hotel Organization, and former secretary of All Nepal Trade Union.
Although the mastermind of the attack is at large, three involved in the attack were held from Hetauda and one from Chabahil, Kathmandu.
The growing rivalry and factionalism in the union was believed to be the main reason behind the attack, police said.
CA member Jamarkattel was attacked with rod from behind at Babarmahal, Kathmandu on August 27, 2011.
Two arrested on charge of assaulting teacher in Arghakhanchi