The Forest Survey of India has listed four categories of forests. They are:

• Very Dense Forest (with tree canopy density of 70 per cent or above)
• Moderately Dense Forest (tree canopy density of 40 per cent or above but less than 70 per cent)
• Open Forest (tree canopy density of 10 per cent or above but less than 40 per cent)
• Scrub (tree canopy density less than 10 per cent)