I am sure 99% of the naturalists and photographers would not know the difference between Hare and rabbit. So Shri M. Krishnan’s article is very apt. I checked the Mammals of South Asia to quote a few more info on the subject.

The hispid hare has a head and body length of 38-50 cm and a tail length of 2.5-3.8 cm. It weighs about 2-2.5 kg. The short ears measure about 8 cm each. The colour of the dorsal pelage is brown. The outer fur is rather stiff and bristly.

This hare is confined to restricted area along the terai habitat of the Himalayan foothills. It survives in scattered areas of Nepal and Assam. According to Ghose(1978), the hispid hare in Assam lives in thatch grassland that grows to a height of 3.0-3.5 m during the monsoon. From January to April, when the grassland and associated forests are set on fire, the hares move to cultivated fields and shelter on the embankments of dried-up streams. When the thatch becomes waterlogged during the height of monsoon, the hares move into the forested foothills. In most places, the thatch is intensively exploited as roofing material, and nearly all stands are regularly burned to improve yield. The hare depends on the thatch for cover ad forage and can survive only in areas that are left unburnt for several consecutive years. it is not known whether the young are born blind and naked, though it is reported that they burrow like rabbits (Prater 1980). Habitat destruction and hunting have contributed to its decline (Ghose 1978, Oliver 1978, Bell et al. 1990). The status of Hispid hare according to the IUC is endangered.

The Indian hare has two main subspecies: the black-naped hare (L. n. nigricollis) and the rufous-tailed hare (L.n. ruficaudatus). The head and body of the rufous-tailed hare measures 40-50 cm, and it weighs 1.8-2.3 kg. The black-naped hare is larger, weighing 2.2-3.6 kg. The black-naped hare is distinctive in having a dark brown or black patch on the back of its neck from the ears to the shoulders, and the upper surface of the tail is black. In the northern parts of the Indian hare’s range, this nape patch is grey instead of black, and these hares are the rufous-tailed hares.

In the dry tracts of western India, the desert hare (L.n. dayanus) replaces the rufous-tailed hare. Its coat is yellowish sandy-grey, paler than that of the rufous-tailed hare. Its coat is yellowish sandy-grey, paler than that of the rufous-tailed hare. It has no black patch on the nape and the upper surface of the tail is blackish brown. The rufous-tailed hare ascends the Himalaya up to 2400 m, and the black-naped hare occurs in the Western Ghats at similar altitudes (Prater 1980). (Page 679-680)