 He was a leading Muslim authority on calendar matters.He initiated in Hyderabad a movement to synchronize the dates of the Fasli months with the Gregorian calendar, and finally succeeded, in 1946, in persuading the Nizam to authorize the proposed reform.His success in this far-reaching revision emboldened him, as a liberal Muslem, to analyze the problem of introducing effectively The World Calendar in the realm of the Crescent.