The main aim of the watershed management strategy of India is to maintain the ecological balance by harnessing, conserving and developing degraded natural resources such as soil.
The correct matches are Vajrai Waterfall- Urmodi river (Maharashtra), Barehipani Falls- Budhabalanga River (Odisha), Dhuandhar Falls- Narmada (Madhya Pradesh), Kunchikal Falls- Varahi river (Karnataka).