IPC sections for a criminal trespass
Section 441 of Indian Penal Code defines Criminal tresspass, it is a cognizable offence hence Step 1 - you should lodge an FIR at police station as per the jurisdiction. If the Police inspector refuses to lodge an FIR then same day write an application to your city’s Police Commissioner and if you are in rural area then write an application complaining against the PI stating that he has refused to lodge an FIR in spite the criminal tresspass is a cognizable offence. Step 2- For quick remedy , you can go ahead with the private complaint by filing a court case under Section. 441, Section. 447 r/w of Indian Penal Code and Section.156 (3) of Criminal Procedure Code. So that Judicial Magistrate First Class will instruct the police station to do further investigation and if you have proper evidences against the accused then you will get the remedy. But do not forget to go ahead with proper steps. Submit all the proofs to court of law related to FIR lodging steps.