Encroachment by vendors repeatedly on public property and path near house

There is a vendor who uses a mobile triwheeler modified into a shop who is encroaching on public property and path next to our house for an year and was removed by municipal corporation and warned by police. He has encroached again. What are the steps one could take to deter and legally handle this after complaining to again to the corporation and police. The vendor now suddenly claims that he has disability certificate from corporation and has built an illegal structure and claims political backing. He also leaves his mobile van at the same place near his illegal structure. My mother suffers from chronic mental condition and comes under disability act 2016 and mental health care act 2017. Though she is doing well, continues loitering , people urinating , throwing alcohol bottles disturbs her. How does one approach this to remove encroachment immediately as municipal took 5 months last time to remove the encroachment. Do court rulings below help. https://www.latestlaws.com/case-analysis/can-hawkers-insist-to-leave-their-merchandise-at-hawking-site-overnight-no-says-sc-read-judgment-184655 https://www.nagpurtoday.in/follow-sc-order-against-illegal-hawkers-hc-tells-nmc-police/10221112 Hawker Can't Claim Right To Leave Goods & Wares Overnight At Hawking Place : Supreme Court https://www.livelaw.in/top-stories/supreme-court-hawker-permission-to-hawk-in-market-hawking-policy-market-196664?infinitescroll=1