The 1st IISF was held at Indian Institute of Technology (IIT) New Delhi in December, 2015. The mega S&T expo attracted more than 3 Lakh people. VIBHA has become the Guinness Book World Record Holder for the successful conduct of the ‘Largest Practical Science Lesson’ by 2000 students from prestigious schools of Delhi. Indeed, the event was a great success with the participation of more than 3000 young scientists across the country. The 2nd IISF was held at CSIR-National Physical Laboratory, New Delhi in December, 2016 with a view to improve their scientific understanding, temperament and appreciation for various feats in science & technology by showcasing Indian achievements. The 3rd series of IISF was held on 13-16 October 2017, Chennai, Tamil Nadu.