LUCKNOW, Aug. 19 -- Authorities returned to Buddheshwar on Tuesday with heavy police and PAC deployment and removed around 200 buffaloes allegedly being kept illegally, two days after a mob allegedly attacked a police sub-inspector with an iron chain and pelted stones at a joint anti-encroachment team, officials said. The action came amid heightened security in the Gadiyana-Badalkheda area, where violence had erupted during Sunday's enforcement drive against alleged illegal cattle rearing and dumping of animal waste on roads and drains. Four more people were arrested on Tuesday in connection with the attack, taking the total number of arrests in the case to seven, DCP (West) Kamlesh Dixit said. Those arrested on Tuesday were identified as Sharafat Ali, 42, Rizwan, 25, Mohammad Salamuddin Ali, 28, Shahabuddin, 32, and Mohammad Islam, 20. Police had earlier arrested two women, Khushbun, 20, and Afreen, 27, allegedly involved in the attack. With the possibility of further resistance during Tuesday's action, a heavy police force, including PAC personnel, was deployed in the area from the morning, officials said. The renewed drive focused on removing buffaloes allegedly kept in violation of civic norms. Around 200 buffaloes were removed from the area during the operation, police said. The iron chain allegedly used during the assault was also recovered. The case involves 27 accused, including 12 named people and several unidentified persons. Police are examining video recordings made during the confrontation. Meanwhile, mayor Sushma Kharkwal visited Para on Tuesday and warned that those obstructing government work or attacking municipal and police personnel would face strict action. Accompanied by municipal commissioner Gaurav Kumar, the mayor took stock of the situation. "Those who obstruct government work, attack municipal and police teams or violate rules will face action as per law," she was quoted as saying in an official statement issued by the civic body. Animal welfare officer Abhinav Verma, Zone-6 zonal officer Amarjeet Yadav, Enforcement Task Force personnel and a heavy police contingent were present during the operation....