Pohnpei has given you a good starting point. News sources are frequently very good and reliable resources. Try to stay away from commercial sites, and focus instead on news sources and educational sources for your research.
To write something like this, you will certainly need to do research. You might start with your textbook. If it has references on this topic, you should look them up. Otherwise, you will want to use the internet.
It is generally said that Pakistan's intelligence service is behind the current unrest in Kashmir. However, you should (if I were your teacher, at least) look at both sides of this conflict. In other words, both Pakistan and India are likely to have different perspectives on the role of Pakistan in the conflict in Kashmir. You should be careful about your sources -- try to determine which side (if any) they favor and take that into account as you read the.
Here is a link to get you started. It is from a US newspaper so it should be relatively neutral.