J. S. Grewal is Honorary Director of the Institute of Punjab Studies, Chandigarh, India. A former Professor and Vice Chancellor of Guru Nanak Dev University, Amritsar, as well as Director, and later Chairman, of the Indian Institute of Advanced Study, Shimla, he has written extensively on historiography, medieval India, Punjabi literature and Punjab and Sikh history.

Indu Banga is Honorary Secretary of the Institute of Punjab Studies, Chandigarh, India. A former Professor of History at Guru Nanak Dev University, Amritsar, and now Professor Emeritus at the Panjab University, Chandigarh, she has published several books and articles on agrarian and urban issues, gender relations, historiography and socio-cultural change in medieval and modern India, especially Punjab.