Halal food is not an issue in Chiangmai if you are near Night Market. AL Hussain Restaurant in Anusam market is the best place we have visited. Very good Pakistani and Thai Food. The owner Mr. Baqar is very helpful and has a personal touch in service. They also deliver to our hotel across the river. Tel: 0944681316 & 0876372959. He also explained us that we can be sure of Halal things in packed food like yogurt, milk, chips etc by liking at Halal mark on the product. In Thailand lot of brands like Nestle, Walls etc. mark their product Halal under the certificate issued by a Muslim authority.