Adoptions from other constitutions
The architects of Indian constitution were most heavily influenced by the British model of parliamentary democracy. In addition, a number of principles were adopted from the Constitution of the United States of America, including the separation of powers among the major branches of government and the establishment of a supreme court. The principles adopted from Canada were Unitary government with strong centre and also distribution of powers between central government and state governments along with placing residuary powers with central government. From Ireland, directive principle of state policy was adopted. From Germany, the principle of suspension of fundamental rights during emergency was adopted. From Australia, the idea of having a Concurrent list of shared powers was used as well and some of the terminology was utilized for the preamble
