The recent crash in bitcoins has been due to the ban on Bitcoins by the RBI that is the authority controlling all the banks that run in India.
I do not think the crash is heavily affected by the RBI cryptocurrency banning. That is too much India is not a USA or China where are the cryptocurrencies user is widely spread. I'm sure we can easily achieve another tremendous drop if only such countries that I mentioned starting banning cryptocurrencies.
The ban did have impact on the prices of bitcoins and other coins on Indian exchanges as the prices dropped to more than 30-405 in just few hours of the announcement. Prices remained unaffected on international exchanges and thus there was no other reason for the price fall.