How did natural conditions affect the occupations of the inhabitants of ancient India?

The first civilization that arose on the territory of ancient India was the Harappan people. They were mainly engaged in agriculture and cattle breeding, like the rest of the early civilizations. They inhabited the region of the Indus River, where a hot and humid climate prevailed. Most of the ancient Indians were engaged in the cultivation of crops and gardening. Also, the Indians bred sheep, chickens, goats, etc. In addition, the Indians also mastered crafts: weaving, jewelry, ivory carving, etc.