For Mumbai, India, today (10 February 2026):

• Sunset time ≈ 6:36 PM
• Normal chauvihar: stop eating and drinking by 6:36 PM.
• If you follow the stricter rule (about 48 minutes before sunset), then stop by about 5:48 PM.

If possible, follow whatever exact time your local Jain temple / panchaṅg gives, but these are the correct approximate timings for today.