Here are some simple Jain-friendly boy names starting with “P”:

1. Parshva / Parshvanath
2. Pradeep
3. Prakash
4. Pranav
5. Pranay
6. Pratik
7. Prashant
8. Pravin / Praveen
9. Priyank
10. Priyansh
11. Punit / Punyat
12. Piyush
13. Pushkar
14. Paawan / Pawan
15. Prabhat
16. Prabhu
17. Pramod
18. Prasad
19. Prafull / Praful
20. Parimal

If you tell me your language preference (Hindi/Gujarati/English mix) and if you want very traditional Jain names or more modern ones, I can narrow the list further and add meanings.