For Navkarsi we usually take 48 minutes after local sunrise.

On 5 April 2026 – Chennai

• Sunrise (Chennai): ≈ 5:14 am
• So Navkarsi time is up to about 6:02 am (5:14 + 48 minutes).

Different sanghs sometimes follow slightly different panchāng/patrikā timings, so for exact local use (temple board, pratikraman book, etc.) you can confirm once with your Jain sangh, but approximately till 6:00–6:05 am is the Navkarsi limit for that date in Chennai.