Kirk report is an excellent trading ( US markets) blog that I occasionally read, a few days ago I was searching for a blog on indian markets. Alas could not find anything as good as kirk report. But here are some decent results that turned out.
http://www.rupya.com/ ( The best among the lot)
http://indiafinance.blogspot.com/
http://businessandi.blogspot.com/
Trading blogs
mtrajan.com 