Hi Ranjani... Sorry for such a late reply - I am opening my mails and website after a long time... Nice to know that I can have some company in drawing caricatures... I started taking up interest in caricature only recently - more like a few months only or so ago... So I am still very much learning.
I started taking interest in caricature after I attended a class by Stephen Silver on Character Design, which is where I want to land up. One of his class lectures covered bits of portrait drawing and caricaturing.. It wasn't in too much detail, but was pretty informative.
I have always been kind of good at portraits, and I see that you draw some good faces too.. I came to understand that caricature is just about letting yourself free to break some ground rules of drawing a face.. But, with a good understanding of what those rules are in the first place.