Chandra Grahan is a term used in India to refer to a lunar eclipse, which is an astronomical event that occurs when the Moon moves into the Earths shadow, causing the Moon to be darkened. The next Chandra Grahan will occur on October 28, 2023, and will be visible in India. During a lunar eclipse, the Moon turns a reddish-brown color due to the Earths atmosphere refracting the light that reaches the Moon. The eclipse will begin at 11:31 PM IST and will end at 2:24 AM IST on October 29, with the greatest eclipse occurring at 1:45 AM IST on October 29.

Dos and Donts during Chandra Grahan include avoiding eating non-vegetarian food or drinking alcohol, avoiding cutting hair or nails, and avoiding starting any new projects or ventures. The Sutak Kaal for the Chandra Grahan on October 28, 2023, will begin at 9:15 PM IST on October 28 and will end at 3:36 AM IST on October 29.

Lunar eclipses are important astronomical events that can provide scientists with valuable information about the Earth-Moon system. By studying the way that the Moons light is affected by the Earths shadow, scientists can learn more about the system.