The problem of membership in commonwealth was resolved by using the theory of adjustment by the makers of the constitution. In 1946, the constituent assembly decided that India would be a sovereign democratic republic. The meaning of republic means the country where the president is elected and being the head of the country he exercises his rights and powers of governance through the cabinet of ministers headed by the Prime Minister.
After that, in 1949, it was decided in the constituent assembly that India would be a member of Commonwealth, whose chief was the British empire. In this way India became the first country where two rival principles federal and unitary were established in a functional synthesis.