During a full lunar eclipse, the Earth passes directly between the Sun and the Moon, creating a shadow on the Moon. Even when the Moon is hidden by Earth's shadow, some sunlight still passes through Earth's atmosphere and bends due to refraction. Shorter blue light wavelengths are more effectively scattered by the Earth's atmosphere, but larger red and orange light wavelengths bend and reach the Moon. The Moon turns reddish as a result, earning the term "Blood Moon."
India would not be able to see the initial phase of the lunar eclipse because the event will occur under "moonrise eclipse" conditions. This means that the eclipse will be in progress by the time the Moon rises in different parts of the country. As a result, the visibility period will vary significantly and people in different cities won't be able to witness the eclipse until after moonrise.