Detailed Solution:
The correct answer is “Kelkar Committee”.
The committee that has recommended the abolition of tax rebates under section 88 of the Income Tax Act of India is the (b) Kelkar Committee.
The Kelkar Committee, officially known as the Tax Reforms Committee, was established in 2002 to provide recommendations for comprehensive tax reforms in India.
One of its recommendations was the elimination of tax rebates under section 88, which aimed to simplify the tax structure and promote efficiency in the tax system.