HUL! one of the biggest name in India. I bought Pureit Marvella Uv about 2 years back! There were just too many problems with this product. You need to change filter in every 3 months. You need to buy some solutions from them to clean the filters. The solution cost 300 rs and has shelf life for 9 months which you intend to use 4 times a year!
After Sales Service - just PATHETIC!
Guys are not simply interested in working. Not coming as per the appointment is norm here. Once a guy came 2 days later of the decided appointment. He came at night and while doing his work he broke few glasses kept near to the device.
Customer care - again PATHETIC . They behave as if they really not interested in answering your call and in all the cases divert your case to the local service centers and these Service centers guys again very much demotivated to work(for reasons unknown)!
All in all, avoid buying this product on any cost (They even stopped their 1 CR challenge ;)