The Forest Conservation Act was enacted in 1980 to conserve forests in India. It defines forests as land with trees, plants and organisms, and categorizes six main forest types - tropical rainforest, tropical deciduous forest, tropical scrub, temperate rainforest, temperate deciduous forest, and evergreen coniferous forest. The Act aims to protect forests by restricting non-forestry activities and requiring central government approval for activities like mining or deforestation. It also establishes committees to advise on forest conservation and provides legal means to stop illegal deforestation.