India, Feb. 27 -- As India's cities grow, getting clean water from the municipality is becoming harder. Many people now depend on tankers and borewell water, making water purifiers more important than ever. You've probably heard of RO purifiers, but they can be expensive. Luckily, there are great options under Rs.3000 that offer reliable purification. Many use UF Technology and Copper Enrichment Technology, which help protect against diseases like jaundice and hepatitis. However, not all are suitable for tanker or borewell water. Many work without electricity, which are ideal for areas with frequent power cuts. The good news? Amazon has plenty of choices from top brands and smaller ones. We've picked some of the best water purifier under ...