Avantages
The only reason to work for HCL is for the health insurance, which is pretty good. If you have five kids, are male and need to insure them cheaply, then it may be worth settling to work at HCL to get that good insurance.
Inconvénients
I'm a white, American female with a graduate degree and fifteen years experience in start ups in Silicon Valley. At HCL, I was treated like I had no degree and no experience. My managers in Chennai treated me like I was a 22 year old blue collar woman and if they could have had me serve them coffee across the oceans that separated us, they would have. DO NOT WORK FOR THEM IF YOU ARE FEMALE, no matter what your race. I did a lot of research on the company and I don't think it's an Indian thing -- HCL is hated in India, too. It's just a very large global company with a terrible culture. Kind of like the Walmart of India. (I won't shop at Walmart because of how they little they pay their floor staff.) I quit the job when I found out I was making 60% of what the white males were making with less experience and education. It's THAT kind of company. I've experience pay differences due to gender in the past, but in companies run by American males, it's usually only a 10% gap, and that I can live with.