The correct matches are Vajrai Waterfall- Urmodi river (Maharashtra), Barehipani Falls- Budhabalanga River (Odisha), Dhuandhar Falls- Narmada (Madhya Pradesh), Kunchikal Falls- Varahi river (Karnataka).
Withering is used to remove excess water from the leaves and allows a very slight amount of oxidation. The process is also important in promoting the breakdown of leaf proteins into free amino acids and increase the availability of freed caffeine, both which change the taste of the tea.
The Narmada river creates the conventional border between South India and North India. The river runs to the west for a span of 1,312 km and flowed through the Gulf of Khambat (Cambay) into the Arabian Sea, in Gujarat. Like the Mahi River and the Tapti River, the Narmada River is a river flowing from east to west.