The British period is not a major period in Indian history, as it was a period of foreign rule.

Christianity is not a major religion in India, as it is practiced by only a small minority of the population.

English is not a major language in India, as it is not spoken by a majority of the population.

Yamuna is not a major river in India, as it is not one of the three major rivers of India (Ganges, Brahmaputra, and Indus).

Satpura is not a major mountain range in India, as it is not one of the three major mountain ranges of India (Himalayas, Vindhyas, and Aravalli).

Chennai is not a major city in India, as it is not one of the four major cities of India (Delhi, Mumbai, Kolkata, and Chennai).

Rajasthan is not a major state in India, as it is not one of the four major states of India (Uttar Pradesh, Maharashtra, Bihar, and Rajasthan).

Battle of Plassey is not a major historical event in India, as it was not a major turning point in Indian history.

Christmas is not a major cultural festival in India, as it is not celebrated by a majority of the population.

Nelson Mandela is not a major historical figure in India, as he was not a part of the Indian independence movement.