How is the new anti-conversion law going to affect Christians in India?

There is news that [Modi government likely to bring bill to prevent religious conversion in next Parliament session](https://zeenews.india.com/india/modi-government-likely-to-bring-bill-to-prevent-religious-conversion-in-next-parliament-session-2226198.html) There is [currently this plea from persecution relief](https://www.facebook.com/753076218058620/posts/3465904810109067/) and a [petition to be signed](https://www.change.org/p/petition-to-the-prime-minister-to-stop-introducing-freedom-of-religion-bill-alleged-anti-conversion-law-in-india) How have such laws affected Christians in the world in the past? And how would they affect Christians in India? Have such laws caused any type of unity and revival of fellowship among denominations who would not otherwise fellowship with each other in the past in world history?