When did people, speaking the Punjabi language started agitating for a separate state for themselves?

1950s

The correct answer is option (2) - 1950s

From the late 1950s, people speaking the Punjabi language started agitating for a separate State for themselves. This demand was finally accepted and the states of Punjab and Haryana were created in 1966. Later, the States of Chhatisgarh, Jharkhand and Uttaranchal (now Uttarakhand) were created.