While six of them have been held from Punjab, five were nabbed from neighbouring Haryana, and one from Uttar Pradesh.
The accused opened fire at the police and in retaliatory firing, he received a bullet injury in his leg, the police said.
Haryana Chief Minister Manohar Lal Khattar on Tuesday said no culprit will be spared after a deputy superintendent of police investigating illegal stone-mining was killed in Nuh district when a truck he signalled to stop drove into him.
Bajrangi alias Raj Kumar was arrested from Faridabad on August 15 after a fresh FIR was registered against him at Nuh's Sadar Police Sation on a complaint of Assistant Superintendent of Police Usha Kundu.
The official said the occupants of the Haryana Shahari Vikas Pradhikaran (HSVP) land were illegal Bangladeshi immigrants who were earlier living in Assam and the shanties were demolished Thursday evening.
A deputy superintendent of police investigating illegal stone-mining was killed on Tuesday when a truck he signalled to stop in Haryana's Nuh district drove into him, officials said.
"Raj Kumar alias Bittu Bajrangi, who is said to be a Bajrang Dal worker, has never had any relation with Bajrang Dal. The Vishva Hindu Parishad also does not consider the content of the video allegedly released by him to be appropriate," the right-wing outfit said in a statement.
Cow vigilante Bittu Bajrangi was arrested on Tuesday in connection with communal clashes that erupted in Haryana's Nuh district on July 31, police said.
Sabbir, alias Mittar, the key accused in the case, was arrested from Rajasthan's Bharatpur district.
State Home Minister Anil Vij said the probe will also go into all aspects of illegal mining in the area.
The family of a 22-year-old youth has accused cow vigilantes of thrashing him to death after branding him a cow smuggler in Nuh district, but the police said he died in a road accident.
Around 15 other temporary structures were also demolished as part of the drive, police said.
The Nuh police on Friday nabbed a native of Rajasthan's Alwar for harbouring the key accused in the murder case of a Haryana DSP who was mowed down while probing illegal mining.
The incident occurred on Sunday in the Chupanki police station area in Bhiwadi near the Rajasthan-Haryana border where Sabir Khan (17) was hit by the speeding vehicle in which the cow vigilantes were chasing the truck, police said.
While the Congress has convened a meeting of all its MLAs on Wednesday to take stock of the evolving situation, the BJP legislators have been shifted to Haryana in an attempt to keep the flock together and thwart any poaching attempt by the Congress-JDS combine.
The US-based firm already has two fulfilment centres in Mumbai and Bengaluru.
Seven people have been arrested after anti-narcotics sleuths and Haryana police busted a suspected Christmas-eve rave party being held at a farmhouse in Mewat district on the outskirts of Delhi.