- The defence that he paid 30L and you did not gave him any receipt is not tenable given his past conduct and cases filed by you against him.
- File a complaint in the Court of Magistrate for cheating as police will hesitate to register the Court will issue direction to police to register FIR and investigate.
- File a criminal complaint under 138 Negotiable Instruments Act, 1981.
- File a summary suit on the basis of cheques.
- You have full advantage of previous case.