Why Where There So Many Varieties Of Coins In India Before The British?

With the death of the last Mughal Emperor the empire become week. The governors of the emperor seized the lands that they were administering for the Mughal and declared themselves to be new rulers. at the same time many military leaders began to curve out kingdoms for themselves by force. by the time the British took control of india there were over a hundred princely states. the new rulers gradually replace the Mughal in script-ions. in other parts of India also like the Deccan and southern states. different monetary system and issued independent coins. So we see that the princely states of pre-colonial India minted there own coins, all of this resembled the silver rupee, but had small variations from region to region. as a result hundreds of  new varieties of coins were in use in India when the British arrived here.