In the battle of Chandawar, he fought against Mohammad Ghori and killed the enemy commander Abdul Rahim, but Raja Karnadev was also martyred in the war.
In childhood, Kanhadev received education in scriptures and weapons from Rishi Sukshma Muni in Gogaso Ashram Raebareli.
According to some information, he also inherited Manikpur from his maternal grandfather, but due to some reasons, Maharaja Kanhdev left the throne of Manikpur, He married twice, first to the daughter of Visen Kshatriya dynasty of Majhauli State, second to the daughter of Trilokchandi Bais Kshatriya clan of Hajipur State, Bihar.
Later, there were many Babuans related to these concessions which were inherited by the kings of the princely states to their sons who had the title of Babu like Bhagirathpur, Berara, Goriyaabad, Gangagarh, Miramau, Mukhetiya, Chiluli, Pichura Kot, Gopalpur, etc.
There were many warriors among the Kanhapuria Kshatriyas who fought against the invading Mughals, Nawabs and the British and protected the country, religion and people.