Number of forest types found in India are 14. These are classified on the basis of based on phenology and then biogeography, elevation. These are wet evergreen forest, dry evergreen forest, subtropical dry evergreen forest, subtropical broad leaved forest, montane wet temperate forest, semi evergreen forest, moist deciduous forest, dry deciduous forest, subtropical pine forest, Himalayan moist temperate forest, Himalayan dry temperate forest, subalpine forest, littoral and swamp forest / mangrove forest and thorn forest.
Thus, the correct answer is '14.'