Do we get a charger along with Tata Tiago EV or do we have to purchase it separately?

Yes, you do get charging equipment with the Tata Tiago.ev, so you do not have to buy the basic charger separately. official brochure lists of Tata a portable charging cable as standard and also shows the 3.3 kW AC wall box charger as the included charger type, while the 7.2 kW AC wall box is listed