Since you prefer a large-capacity engine, consider the Maruti Suzuki Brezza. It comes with a 1.5-litre naturally aspirated petrol engine paired with a smooth 6-speed torque converter automatic.
This gearbox is well-suited to city driving and relaxed usage, unlike DCTs, which tend to be clunky. A fully loaded Brezza Automatic should come in at just under Rs 15 lakh on road.