The correct answer is (b) Jammu and Kashmir.
The Constitution of India is the supreme law of India. It was adopted on 26 November 1949, and came into effect on 26 January 1950. The Constitution provides for a parliamentary system of government, with a President as the head of state and a Prime Minister as the head of government. The Constitution also provides for a federal system of government, with power divided between the central government and the state governments.
However, there is one exception to the application of the Constitution in India. The state of Jammu and Kashmir has its own constitution, which was adopted in 1957. The Jammu and Kashmir Constitution is based on the Indian Constitution, but it also contains some special provisions that are not found in the Indian Constitution. For example, the Jammu and Kashmir Constitution provides for a separate flag and a separate emblem for the state.
The special status of Jammu and Kashmir has been a source of controversy for many years. In 2019, the Indian government revoked the special status of Jammu and Kashmir. This decision has been met with widespread protests in the state.
The other options are incorrect because they are all states that are subject to the Indian Constitution.