The city of Allahabad was originally known as Prayag in ancient times. The Union Home Ministry has approved the proposal of the Uttar Pradesh Government to rename Allahabad as Prayagraj. Akbar’s grandson Shah Jahan renamed the entire city as Allahabad.
The correct matches are Vajrai Waterfall- Urmodi river (Maharashtra), Barehipani Falls- Budhabalanga River (Odisha), Dhuandhar Falls- Narmada (Madhya Pradesh), Kunchikal Falls- Varahi river (Karnataka).