Continuing in prayer.
Most Indians coming here for schooling tend to be very serious about their education and future, which could make them a good influence upon your daughter.
While you are correct the odds of her being a Christian are small, it's not impossible, especially with God! Even if not a Christians, many Indians are very open to discussion of "religion" and tend to take spiritual matters seriously. This also could possibly be good.
We can add these aspects to our prayers.
Our oldest son called this last weekend, first time since before Easter. Still a lost sinner. While the conversation was somewhat less strained than in the past, he's developed a very foul mouth (which he didn't like being told not to use that language when calling and especially when talking with his mother) and he's still got a bad attitude about things in general. We pray the Lord will do a work in his life to bring him to Christ.
Scripture doesn't tell us how long the prodigal son was away living a sinful life after disrespecting and disgracing his father but it had to have been a fairly long time. We see from that parable that just because things are looking bad even for a long while, there is yet hope. That's good news from God for your daughter, our son, and the others in similar situations.