Correct Answer: (d) Jonaraja and Srivara
Note: Rajatarangini, a metrical historical chronicle of the north-western Indian subcontinent, particularly the kings of Kashmir, was written in Sanskrit by Kashmiri Brahmin Kalhana in the 12th century. Jonaraja continued the narration down to the reign of Sultan Zainul abedin and called it, like Kalhana, Rajtarangini (Rajavali). After the death of Jonaraja, his pupil Srivara continued the history of Kashmir.