Answer

Jain Diwali in 2027, also observed as Bhagwan Mahavir Swami Nirvana Kalyanak, falls on:

Friday, 29 October 2027

Explanation

In Jain Dharma, Diwali is especially sacred because it marks the day when Bhagwan Mahavir Swami attained Nirvana / Moksha at Pavapuri.

The next day is observed as the beginning of the Jain New Year, so in 2027 Jain New Year will be around:

Saturday, 30 October 2027

Takeaway

For Jains, Diwali is not only a festival of lights, but a day of deep remembrance, prayer, reflection, and devotion to Bhagwan Mahavir’s liberation.