I was journeying on Indigo Pune-COK back and forth. At both the times, I noticed airline attedants looking at some LED display which seemed to be some sort of balance scale. At first, I thought they might be looking to check at some sort of weight distribution sensor to check whether things are distributed evenly all across the aircraft or something else. I am not sure now but would be glad if somebody could chime in. The plane is and was single class 180 Airbus A320. https://seatguru.com/airlines/IndiGo/IndiGo_Airbus_A320.php
Edit : Update - . Both times, it was before the takeoff procedure. The LED/LCD display was located above the flight attendants chair on the left . The chair on which they sit in the front during take off. The one which is located to left of the refreshments and just before the pilot cabin/cockpit. The LED/LCD display was above the flight attendant's chair at eye-level.
While I'm sure it had to do with probably some sort of avionics controls they were looking at, I am not sure what.