During summer in tropical regions, temperatures increase and many people sweat a lot, become dehydrated and feel thirsty. So in addition to water, they also drink a lot of juices to regain the minerals and other nutrients which lose when they sweat
There are many beverages available in the market, and the quality, price, packaging of these juices,soft drinks varies a lot. For comparison of these refreshments, check juices, soft drinks, beverages available in India, especially goa