Which of the following commissions suggested the establishment of National Universities in India?

The correct option is Knowledge commission.

Detailed Explanation:
The National Knowledge Commission (NKC) was constituted on 13th June 2005 by the Prime Minister of India, Dr. Manmohan Singh, as a high-level advisory body with the aim of transforming India into a vibrant knowledge society.

Under the chairmanship of Sam Pitroda, the NKC made several landmark recommendations to reform the Indian education sector. Among its key recommendations for higher education, the commission proposed a massive expansion to increase the gross enrollment ratio in higher education. To achieve this, the NKC specifically recommended the establishment of around 50 National Universities across the country. These universities were envisioned as institutions of excellence that would set new benchmarks for teaching, research, and academic standards in India.