KENT ULTRA UV Water Purifier Rs. 4999

Purification Capacity 60 litres/hour
Inlet Water Pressure (min) 0.3 kg./cm2
Input Voltage 100-300 V AC (50 Hz)
Dimensions (LxWxH) 395 x 136 x 340 mm
Net Weight 4.70 Kgs
Resulted from the latest innovations in UV technology protects drinking water from bacteria & viruses efficiently over common UV Water Purifiers
Designed with state – of – the art 3 – stage advanced UV filtration system.
It uses Sediment Filter and Activated Carbon Filter which is extremely effective in killing bacteria, viruses & other micro-organisms
The 11 W high energy UV Lamp provides greater UV intensity than a standard lamp
Fit-in UV alarm that automatically goes in action if the UV Lamp stops functioning.

http://www.amazon.in/gp/product/B0073QKROI

I am already using a water filter, but this offer is very attractive . Also the review for new Kent Gold Gravity Based portable water purifier is good.
This purifier based on UF storage water purifier removes harmful micro-organisms such as bacteria, viruses and cysts, dust, sand, chlorine, etc. It is the only gravity non-electric water purifier which is certified to remove cysts. This UF technology portable water purifier is suitable for use where inlet water has low TDS (Total Dissolved Solids).