Pros
Absolutely nothing is good in TCS.
Cons
In terms of human resource, almost everything that can go wrong has gone wrong with TCS. 90% of the human resource is extremely poor in quality. TCS is a place full of politics and backstabbing. TCS has an anti-meritocracy culture, and if you are intelligent and hardworking, you will be demotivated, demoralized and even punished for it. At senior level, only politicians and opportunists can progress here. At senior level, TCS is filled with low-merit politicians, who cling to it for years and years together as they will most probably not get a job anywhere else. It is very common to see people, even VP level people, not knowing how to speak or write Basic English. I have seen Senior Managers who had not written even one single email without spelling or grammatical errors, ever. Such low level senior management people are obviously very insecure, and if you do good work, most probably you will be discouraged to such an extent that you will have to leave. Middle management, where I was in suffers the most. It works very hard but has to endure the politics coming from the low-grade senior level. They also have to manage unbelievably incompetent and useless teams. At lower level, there are extremely low-merit bad-attitude people reporting to you, who will make your daily life a headache. They won’t have professional attitude, and won’t have ability to do any fruitful work. Middle management ends up doing the work of these incompetent associates, in addition their own work. Almost any person can get into TCS, it’s that easy. Mostly people who are rejected from everywhere else get into TCS. These people won't know anything, be it writing even the basic most programs, or writing/speaking English. Some of them are adamant in attitude and TCS’s rigid structure ensures that you cannot take any action against these people. So its frustrations galore for middle management associates. This situation is further exacerbated by very poor office facilities like cafeteria or transport or almost anything. So, in the nutshell, it was my mistake to even join TCS, and I am thankfully out of it now.