Okay kiddo, so a long long time ago, there was a group of people called Christians who believed in a man named Jesus Christ who they thought was the son of God. They had a book called the Bible which they used to teach others about Jesus and his teachings.
Now, some of these Christians traveled to a place called the Indian subcontinent, which is a big area that includes countries like India, Pakistan, and Bangladesh. When they got there, they started teaching other people about Jesus and Christianity.
But not everyone in the Indian subcontinent was interested in Christianity. Some people already had their own religions and didn't want to change. Plus, there were also laws that made it difficult for Christians to share their beliefs.
Despite these challenges, some Christians were able to spread their ideas and make converts. Over time, Christianity became more established in certain parts of the Indian subcontinent.
There were different types of Christianity that developed in the Indian subcontinent, and they sometimes had their own unique traditions and ways of doing things. Some Christians even blended their beliefs with local customs and practices.
Overall, ancient Christianity in the Indian subcontinent was a smaller and less influential version of Christianity compared to other parts of the world. But it still played an important role in shaping the religious landscape of the region.