pilgrimage of a stock trader

"where are you going?"
asked the curious father of a stock trader.

"dad, i am going for '3 dham yatra' "
the trader said.

"where?"
asked the surprised father.

"prabhadevi, bandra, fort."
the trader replied.

"where are these?"

"mumbai, dad."

"what kind of 'dhams' are these?!!
dad snorted.

"ncdex, nse and bse"