This document summarizes different types of agriculture practiced in India and key crops grown. It discusses primitive subsistence farming, intensive subsistence farming, and commercial farming. Major crops include rice, wheat, millets, maize, pulses, sugarcane, oil seeds, tea, coffee, horticulture crops, rubber, silk, cotton, and jute. The document also outlines rabi, kharif and zaid crop seasons and the regions they are grown in. It discusses various agricultural reforms and challenges facing Indian agriculture.