2 aircraft and 2 cabin layouts, from the A320 to the 737 MAX 8. Pick one for its seat map, the best seats and the seats to avoid.
There are seat maps for 2 Air India Express aircraft here: the Airbus A320 and the Boeing 737 MAX 8.
The Boeing 737 MAX 8, with 189 seats: 189 Economy in its main layout.
The Airbus A320, with 29" of seat pitch in Economy and seats 17" wide.