The correct option is D Tamil Nadu
The Anti Hindi agitation is a series of violent demand events took place in the state of Tamil Nadu during both pre and post Independence era. The first agitation took place against imposition of Hindi in Madras State (now Tamil Nadu) when teaching of Hindi in schools was made compulsory. thereon demand continues to make India an official language of India alongside Hindi when the Official Language Act passed to make Hindi a sole official language. then to supress the agitation, violence and protests English and Hindi were made official languages of India indefinitely.