Sorry folks for a late reply. Was out of station for a month or so. I got the project repaired yesterday. It was a lamp burnout. The lamp is changed as of now and projector is switching on

. Couldnt find time to mount it back on the ceiling and check other minute details. Will follow up.
Thanks for all the support!!
The technician advised me that my existing V-Guard SESTO 1000 1KVA UPS for the projector may not be a reliable customer. I personally also had to encounter numerous repairs on this UPS for the past 2 years.
Which is the best UPS for a Full HD Projector?
Is Sinewave a must?
APC only seems to be the available Sinewave option. But it is pricey and just has 1 year warranty and dealers are bit weary about the after sales service.
Please advice.