Chandigarh, Nov. 7 -- The Mohali-based businessman, whose house came under fire on late Tuesday night, had received extortion calls asking to pay Rs.2 crore protection money few days earlier, police probe has revealed. The police have registered an FIR against gangster Lucky Patial on the complaint of Manpreet Singh, 38, son of hotelier Tara Singh Saini. Saini owns Regenta Place Hotel at TDI City, Sector 119, Mohali, and is a resident of Sector 38-C. Police said they have detained a few suspects for questioning, but added that they have not found any evidence so far to confirm that the firing was executed on the gangster's instruction. In his complaint, Manpreet told police that on October 23 at about 8.56 pm, he received a WhatsApp call from an international number. The caller introduced himself as Lucky Patial and threatened him, saying that if he wanted to "work peacefully", he must pay money, or else his entire family would be killed. Singh disconnected and blocked the number and informed the Mohali senior superintendent of police about the threat. However, he continued to receive such calls, including one from another number where the caller identified himself as Arvind and demanded Rs.2 crore. On Tuesday morning, at around 9 am, Singh stepped out of his residence and found four empty cartridges lying on the road. On inspecting his house, he noticed three bullet marks on the outer wall, one bullet hit on the main gate, which damaged the latch and fibre sheet, two bullet marks on a Mahindra Thar parked outside, owned by his tenant. CCTV cameras of the house showed two helmetless bike-borne assailants firing towards the house. "Had any family member been outside at that time, the bullets could have taken a life," Singh said, alleging that the attack was carried out on the directions of gangster Lucky Patial to force him to pay the ransom. After verifying the footage, evidence and the complainant's statement, police registered a case under Sections 109 (attempt to murder), 308(4) (extortion), 351(3) & 3(5) (criminal intimidation), 61(B) (criminal conspiracy) of BNS and the Arms Act against Lucky Patial and the unidentified shooters....