“According to Avatar Singh’s complaint, Bose said his garage was frequented by one Munna Musalman, a co-accused of Pakhi Mian. And Bose, who is investigating the case threatened him that he will implicate him in the murder case if he fails to shell out Rs 50,000. He made a number of phone calls to Singh and also met him personally to harass him,” said another source.

So a trap was was laid and Avatar called up Bose to arrange for a meeting to

give the bribe. Bose and Singh fixed the venue at Ultadanga crossing. Bose was caught when he arrived on the spot at 12.10 p.m. and received the cash.

Teams also raided his office in Salt Lake and his residence in Ultadanga. The raids were on till last reports came in.

Bose, who was leading investigation into a number of high profile cases, including Chota Angaria massacre, Tagore Nobel prize theft from Santiniketan and Tapasi Muder case, is one of the most important CBI officers in Bengal. He faced sharp criticism from ruling CPI(M) when he arrested Suhrid Dutta, party’s Hooghly district committee member and his accomplice Debu Malik in Tapasi Malik murder case. The duo were recently convicted to life in a lower court. Bose was also criticised by the ruling party in his investigation on the Chota Angaria case.