not only TCS, but most of the software companies in India are going to stop onsite projects. The clients of these s/w organizations are interested in profits which will increase by cutting costs. The costs will go down if people in India work in multiple shifts.
Think logically and you will understand that Ratan Tata holds no magic wand. He is just a plutocratic ego bomb ready to explode on the soft targets of India - the confused semi-educated people whose only aim in life is to get a job.
See how many local people of Uttaranchal got jobs in Tata's Voltas plant in Panthnagar. Look at the working conditions there; not a single fan for the mostly contractual workers in an AC & refrigerator factory. Isn't that a shame?
Please dont be so optimistic, your bubble of hope can blast any time.