Do these GCC's have great work life balance? They may be better that the service companies, and may pay better, but WLB is shitty everywhere in India as far as I can tell. As an example, the death of Ernest & Young employee Anna Sebastian sparked a lot of discussion in Indian media since it was attributed to work pressure.[1] Another example I recently heard was a USA Texas based company called CorroHealth suddenly closing shop and laying off 800+ employees in India, the employees allege it was retaliation for asking for overtime payment since they were being made to work till 10 pm.[2]
If you are an American or European with colleagues in India, and if they are working or attending meetings after regular work hours, they don't have good WLB. Given a choice, I doubt they would want to attend the late night meetings. Life in India is already like playing a video game in hard mode, and yet we have to work lot more hours for lot less pay, and be regularly told how shitty offshoring work is.
[1]https://www.news18.com/viral/26-year-old-ey-pune-employee-su...
[2]https://www.thehindu.com/news/national/tamil-nadu/it-employe...
WLB is truly awful in India. People are stretched and stressed out at work, in addition to awful civic conditions which makes travelling to and from work a nightmare. I am not sure how long this can continue.