 His grandfather K. P. S. Menon (senior) was India's first Foreign Secretary, while his uncle K P S Menon (junior) was the former Indian ambassador to China and 15th Foreign Secretary.His great-grandfather Sir C. Sankaran Nair was a president of the Indian National Congress in 1897.Menon did his schooling from Scindia School, Gwalior, and later did his MA in History from the St. Stephen's College, Delhi.