Here are some beautiful baby girl names starting with N (many are popular in Jain families too):

1. Naina
2. Nainika
3. Nandini
4. Nandita
5. Navya
6. Navini
7. Navisha
8. Namrata
9. Narmada
10. Nidhi
11. Nidhisha
12. Niharika
13. Niki / Nikita
14. Nilesha / Nileshi
15. Nima
16. Nimi
17. Nipa / Nipaali
18. Nirmala
19. Nirmika
20. Nishita
21. Nishi
22. Nishka / Nishika
23. Nitya
24. Nityanshi / Nityanshika
25. Niyati
26. Nivedita
27. Nupur
28. Nutan
29. Nandhika / Nandika
30. Neelam
31. Neelima
32. Neerja / Nirja
33. Neha
34. Netra
35. Nirjara (very special in Jainism – means “she who sheds karmas”)
36. Navkarika / Navkita (inspired by Navkar Mantra)

If you tell me your preference (very traditional / modern / short name / Jain-meaning only), I can shortlist a smaller set for you.