For Navkarsi, the rule is the same everywhere, including Udaipur:

• Find today’s local sunrise time in Udaipur.
• Navkarsi time = sunrise + about 48 minutes.

Example: If sunrise in Udaipur is at 7:10 am, Navkarsi will be around 7:58 am.

Because sunrise changes daily, the exact clock time for Navkarsi in Udaipur also changes every day. For a precise time, you should:

1. Check today’s sunrise time for “Udaipur, Rajasthan” (on a reliable Panchang, temple board, or app), and
2. Add roughly 48 minutes to that time.

This 48‑minute rule is followed in both Shwetambar and Digambar traditions; small differences can exist by local sangh, so always follow your local temple / guru’s announced timing if they give a specific Navkarsi time.

You can read a simple explanation of how Navkarsi time is calculated here: