There's a blog post on Business Views Reviews regarding the big 4 in Indian IT, plus 1: Cognizant.? The general point of the article is that Cognizant is growing faster than the other Indian IT firms, has passed HCL, and is close to passing Wipro.
The emphasis of the article is entirely on Revenue growth.? But there is absolutely no attention paid to customer satisfaction, quality of service, and quality of growth.? We're really not comparing apples to apples in this article, but the oversimplification of just looking at revenue and growth estimates makes it look as though we are.
All of the firms are growing - further sign that the IT economy is healthy.