As the director of the National School of Drama (NSD), Alkazi revolutionised Hindi theatre by the magnificence of his vision, and the meticulousness of his technical discipline. Here he was associated with training many well-known film and theatre actors and directors including Vijaya Mehta, Om Shivpuri, Harpal Tiwana and Neena Tiwana, Om Puri, and (Balraj pandit) Naseeruddin Shah, Manohar Singh, Uttara Baokar, Jyoti Subhash, Suhas Joshi, B. Jayashree, Jayadev and Rohini Hattangadi . While there he created the Repertory Company in 1964 and directed their productions until he left.