DRDO: the defence research body formed in 1958 by amalgamating earlier technical establishments
Background
DRDO works under the Department of Defence Research and Development of the Ministry of Defence.
Its stated mission is self-reliance in critical defence technologies and equipping the armed forces in accordance with requirements laid down by the three Services.
DRDO was formed in 1958 from the amalgamation of the Technical Development Establishments of the Indian Army and the Directorate of Technical Development and Production with the Defence Science Organisation.
It was then a small organisation with 10 establishments or laboratories.
Today it is described as a network of around 41 laboratories and 5 DRDO Young Scientist Laboratories.
Its page names Agni and Prithvi missiles, the Tejas light combat aircraft, the Pinaka multi-barrel rocket launcher and the Akash air defence system among its indigenous developments.
Its motto is Balasya Mulam Vigyanam.
In plain words
DYSL DRDO Young Scientist Laboratory — A DRDO laboratory in the category of Young Scientist Laboratories counted separately from the around 41 laboratories.
Pinaka Pinaka multi-barrel rocket launcher — An indigenously developed multi-barrel rocket launcher named on the DRDO page.