Indeed.
Guests were about to arrive and i thought i better check the AC as it is rarely used.
So i started it at 16 setting and also started Ultron Inverter at 16 in other room just for some cooling comparison.
But wapda volts were just around 180 and conventional AC tripped after 5 minutes. It didn't came back ON after several minutes and i knew it's not gonna work.
Went out, found a stabilizer and installed it. Once put on stabilizer, AC was up and running within a minute. 
It took me about an hour to do this. And i almost forgot that i left the Ultron running in the other room. All frustrated, when i went back to my room, It was ice cold. Ultron was running like a champ without giving $hit about low voltage.
So yeah, never getting a conventional again.