Finding good pants to wear in Indian weather is very difficult. I've been managing somehow, by experimenting and getting different kinds of fits made by tailors around.
I found this on Amazon. Have a look:
Truth is, by the look of it, I don't find it relaxed. You can check different pictures here. Besides, the fabric is knit-fabric. I would prefer something that's non-knit, and more airy surely; actually I wear far more airy non-knit jogger pants every day. But these track pants have good number of good reviews on Amazon.
Strange! After all it's Jockey!