The company said one of the projects will be finalised this financial year.
The pilot project would begin from South 24 Parganas district and be gradually extended to all other 18 districts of the state, Panchayat and Rural development minister Subrata Mukherjee said.
TCS would hire 25,000 more people this year to support its ongoing and upcoming projects.
On Aug 28-31, an average of 1.5 mn e-filed tax returns a day, against IRCTC's daily average bookings of 600,000 & Flipkart's 100,000.