Three youngsters have been selected for Google Science Fair 2012 from India. The shortlisted teenagers will represent India in the global competition to be held in United States.

Among thousands of entries received from over 100 countries around the world, a panel of teachers and university professors selected 15 global finalists for the second edition, who will fly down to Google HQ in California, USA for the Science Fair event on July 23.

From India, two students from Bangalore and one from Lucknow has made it to the list and will present their projects before a panel of acclaimed scientists and tech visionaries at the event.

Rohit Fenn, 16, from Bethany High School and Raghavendra Ramachandran, 17, from St John's International Residential School have qualified from Bangalore city and Sumit Singh, 14, from Lucknow Public School has made it to the list.

Rohit has been selected for his project on "Water-efficient toilet - The Vacu-flush," which can be used as a partial-vacuum assisted flush that will help conserve over 50 percent of the overall water used in a toilet to flush out excrement, according to the website.

 Raghavendra's project on "Visible Light Deoxygenation" that will help re-conversion of partially oxidized fuel (alcohols) into usable fuel is another brilliant idea from the young India brain.

In addition, Sumit had submitted a project on an affordable and feasible "Vertical Multi-Level Farming" method that will help small farmers increase crop yield in agriculture and horticulture.

Another India-born student, Yamini Naidu, has also been selected from Tigrad, US.

 According to the official website, "one winner will be selected from each of the age categories: 13-14, 15-16, 17-18 and one of the finalist winners will be crowned the Grand Prize Winner."

The winner will also get a free trip to the Galapagos Islands with National Geographic Expeditions, along with a grand prize of $100,000.