As Yuvraj, Sir Vijayrajaji worked closely with his father, Khengarji III, and often was left to administer the state during his father's frequent journeys abroad.[citation needed]
He was married on 6 March 1907 to HH Maharani Shri Padmakunwar Ba Sahiba, daughter of HH Maharao Kesari Singhji Bahadur of Sirohi and had several issues.[2]
He built upon his father's reforms, instituting the Kutch High Court, elected village councils and greatly expanded irrigation works and agricultural development in the state during short span of six years of his rule. He took keen interest in irrigation projects and took advice of experts for the matter and it was during his reign the famous Vijaysagar reservoir was built with an irrigation capacity of almost 4047 hectors.[3] A total of 22 dams, mostly earthen, were constructed during his reign of six years, which even today stand to test of time.[3] Also in his reign Kutch became the third princely state after Hyderabad and Travancore to start its own bus transport services beginning in year 1945.[4] Sir Vijayrajaji was a botanist and ornithologist.[5] In years 1942–45, he funded and facilitated Salim Ali's survey of the birds of Kutch.[6] He enjoyed cricket, football, tennis, sculling and loved going on shikar.[citation needed]
He acceded the Princely State of Cutch to the Dominion of India on 16 August 1947, which thus became the first princely state to accede into India. As he was in London at the time India gained independence, he took a decision from there only and the Instrument of Accession of Kutch was signed on his behalf by his heir & son Meghraji, on his behalf.[9] He died on 26 January 1948, aged 62 and was succeeded by his eldest son and Yuvraj, Meghraji.[citation needed] His youngest son, Himmatsinhji, was also noted and earned a name as ornithologist and served as member of 3rd Lok Sabha for Kutch constituency.[6]
The Chhatri of Vijayarajaji, his cenotaph, is located within campus of Vijaya Vilas Palace at Mandavi.