The Uttar Pradesh Special Task Force (STF) on Thursday arrested from Delhi an alleged contract killer wanted in multiple cases of murder, agency officials said.
Sonu alias Shokinder (28) was nabbed by the Noida unit of the STF from Delhi's Geeta Colony, they said.
Sonu was also wanted in a sensational double murder case in Meerut and a contract killing case in Shamli, the official said.
"For some time he has associated with the notorious Dujana Gang also," the official added.
According to the agency, Sonu got in touch with gangster Anil Dujana while he was lodged in Muzaffarnagar jail in 2011-12.
The official said Sonu was being interrogated to elicit other details and make recoveries, adding that further legal proceedings against him will be carried out in Meerut.
(With inputs from agencies.)