In a joint operation with Uttarakhand and Uttar Pradesh police, the Delhi Police Special Cell has claimed to have zeroed in on a notorious gang and arrested three of its members, police said on Monday. According to police sources, Vishwas alias Vishu, Ajit Chaudhary and Mnoj Bhati, all belong to UP’s Sunil Rathi-gang were arrested from Kalindi Kunj in South Delhi on Monday. A 7.65 MM pistol and two other country-made pistols along with six live cartridges were recovered from their possession.