Correct Option (a):
The Panchayati Raj system was first introduced in India in Rajasthan. It was inaugurated by Prime Minister Jawaharlal Nehru in Nagaur district, Rajasthan, on October 2, 1959. This landmark event marked the beginning of democratic decentralization at the local level, following the recommendations of the Balwant Rai Mehta Committee (1957). The committee, constituted to examine the working of the Community Development Programme (1952) and the National Extension Service (1953), had proposed a three-tier Panchayati Raj structure.
Incorrect Options:
Tamil Nadu (b): While Tamil Nadu subsequently adopted the Panchayati Raj system, its implementation did not precede that of Rajasthan.
Kerala (c): Kerala's effective and model Panchayati Raj system developed significantly later, particularly after the 73rd Constitutional Amendment Act of 1992, which mandated its establishment across states.
Karnataka (d): Karnataka implemented the Panchayati Raj system after states like Rajasthan and Andhra Pradesh, and therefore was not the first state to introduce it.