Name the founder of Indian Space Research Organisation(ISRO) & father of the Indian Space Program, whose 100th birth anniversary was observed on 12 August, 2019.

The founder of ISRO (Indian Space Research Organisation) and is known as the Father of the Indian Space Program, Vikram Sarabhai's 100th birth anniversary observed on 12 August,2019 across the country.On August 12,2019, To commemorate the birth centenary of Dr Vikram Sarabhai, ISRO has launched a year-long programmes and functions (include science and space exhibitions, competitions for school children, journalism awards and speeches by eminent personalities) will end on 12th August, 2020.