The correct answer is (b), Rajmannar Committee.
The Rajmannar Committee was a committee appointed by the Government of Madras in 1969 to study the problems of Centre-State relations in India. The committee was headed by Justice P. V. Rajamannar. The committee submitted its report in 1971. The report made a number of recommendations for improving Centre-State relations. However, the report was not accepted by the Government of India.
The Sarkaria Commission was a commission appointed by the Government of India in 1983 to review the working of the Constitution of India with respect to Centre-State relations. The commission was headed by Justice R. S. Sarkaria. The commission submitted its report in 1988. The report made a number of recommendations for improving Centre-State relations. Many of the recommendations of the Sarkaria Commission have been accepted by the Government of India.
The Indrajit Gupta Committee was a committee appointed by the Government of India in 1990 to review the working of the Inter-State Council. The committee was headed by Indrajit Gupta. The committee submitted its report in 1992. The report made a number of recommendations for improving the functioning of the Inter-State Council. Many of the recommendations of the Indrajit Gupta Committee have been accepted by the Government of India.
The Punchhi Commission was a commission appointed by the Government of India in 2007 to review the working of the Constitution of India with respect to Centre-State relations. The commission was headed by Justice M. M. Punchhi. The commission submitted its report in 2009. The report made a number of recommendations for improving Centre-State relations. Many of the recommendations of the Punchhi Commission have been accepted by the Government of India.