Yes, I am 101% sure that it will survive. We will do crypto-to-crypto trading. Some exchanges implementing the process where buyer and seller directly contact to each other and send the money directly to bank account with out involvement of exchange account. We can also find some trust-able friend in other counties where crypto is not ban, using them we can purcahse using fiat.
Other possible way is local bitcoins where they can meet directly like Olx.
If government takes the decision then nothing much can be done as they will have their facts and figures to place the ban and will say the same thing in the court and then court in considerations if it can cause a threat to the economy or nation it will dismiss the plea and will rule in favor of government.