How many people from India migrated to southern Tibet?

The second card in India's hand is generally considered to be tricky. This is the disembarkation card. India immigrated to the so-called Arunachal Pradesh, and it is said that there are 2 million immigrants. No matter how much, anyway, India wants to create a fait accompli, making it difficult for China to recover its territory. India's immigration work is extraordinary, and most parts of southern Tibet were originally undeveloped virgin land. The Indian government has moved Indians from relatively good areas in the mainland to this remote area, and the hardships of the people can be imagined. For example, let you give up the rich life in the mainland and open up land in the frontier without any compensation. Will you do it or not? A guy gets millions, which is bigger than the educated youth in China going to the countryside! The educated youth in China have finally returned to the cities, and these Indians living in southern Tibet have to endure it from generation to generation. India has really spared no effort in this matter. However, it's like a fight between two boxers with very different skills. After India made the gesture of "Hey, Hugh, Hey, Hugh", China people cracked the Indian immigration card with a wave of their hands.