inconsistency in naming of BANKNIFTY conracts

Why there is inconsistency in naming convention of BANKNIFTY

• for index you call NSE:NIFTYBANK-INDEX

• for futures you call NSE:BANKNIFTY23SEPFUT

• for options you call NSE:BANKNIFTY2372049400CE

why you have having NIFTY ahead in index name, this creates some confusion while coding