The correct option is D Recieved a patent for the use of turmeric and neem.
The Council of Scientific and Industrial Research or the CSIR was established in 1942. It had bagged a lot of achievements since its inception. CSIR developed the permanent ink which is used to mark voters' fingernails during elections. It also devised a method to reduce the production of Bamboo. It has received a patent in the US for the use of turmeric as an antiseptic and neem as an insecticide.