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The northern frontiers of India are defined largely by the Himalayan mountain range, where the country borders China, Bhutan, and Nepal. Its western border with Pakistan lies in the Punjab Plain and the Thar Desert.
The Himalayas is one of the longest and oldest mountain in India and and it has almost every largest peak of the world. In central India we have Satpura and Vindhaya Range that separates northern and southern India. Going west we have Aravli Mountain Range which is the oldest mountains in India.