Is it necessary for token or coin to pay huge amount of bitcoin or ethuruem for it to be listed on Exchange...
Why exchangers charge millions of dollars to get a token listed on their exchange?
It depends on the exchange, the reputation of the exchange that a coin is listed on can do a lot to the price and value of a coin. Only the biggest and best exchanges charge a lot of money but when you are saying millions of dollars then you are just exaggerating. These exchanges are projects on their own and projects need money to run, they cannot make their services free