The Assam government announced a judicial inquiry into the circumstances leading to the incident amid mounting public anger.
He was being taken to Nagaon for further investigation when he tried to flee from police custody at Jabroka area, the officer said.
The CM said there should not be any middleman in the police stations as well as the offices of district transport officers, circle officers, DMs, etc.
The two suspected robbers, who hail from Jalpaiguri district of neighbouring West Bengal, were nabbed by Guwahati Police on Saturday and a stolen bike was recovered from them.
Two days ago, the foreigners – 16 male and 10 female – had arrived in Guwahati from Mizoram capital Aizawl in some vehicles and checked into a lodge but soon they were arrested.
The prime accused, Imran Shah Chaudhary, was arrested in New Delhi on Sunday and will be brought here on a transit remand while two others were arrested on Saturday.
Special Director General of Police (Law and Order) Gyanendra Pratap Singh said sleuths in Guwahati had to open fire on one accused in self-defence when he tried to flee custody.
The JCB operator was blindfolded and kidnapped with a gun pointed to his head by the Assam Police wearing commando uniform.
The top cop of the Guwahati Police said the force hit hard at the drug network, which starts from across the border in Myanmar and then enters India via Mizoram and Manipur.
He said he expected the Assam Police to provide cover but they did not respond to the calls for help.
Trouble was brewing on the interstate border since Friday after the Assam Police personnel had stopped Mizoram’s construction of a bridge and seizure of construction materials (TMT bars).
State police chief Bhaskar Jyoti Mahanta said that vehicles, tools, gas cutters, two pistols along with oxygen cylinders were recovered.
DIG (BTAD) Violet Baruah said the Assam Police is taking stern legal action against pro-Taliban comments on social media that are harmful to national security.
A police cordon was set up near Jorabat outpost under Basistha Police station and during checking, 60 packets of heroin weighing about 660 grams packed in plastic soap cases were seized from a truck.
Kolasib District Magistrate H Lalthlangliana said the incident occurred when three residents of Mizoram’s Vairengte town had gone to collect meat from a friend.