Statement A is correct. The National Knowledge Commission (NKC) under Sam Pitroda (formed in 2005) recommended the establishment of an Independent Regulatory Authority for Higher Education (IRAHE) to ensure maintenance of standards and promotion of quality. Statement B is correct. The Committee to Advise on Renovation and Rejuvenation of Higher Education, commonly known as the Yashpal Committee (2008-2009), also recommended for a single, overarching regulatory body for higher education, replacing the existing multiple bodies. Statement C is correct. The Central Government has indeed proposed the idea of replacing multiple existing regulators with a single body, sometimes referred to as HEERA (Higher Education Empowerment Regulation Agency) or HECI (Higher Education Commission of India), to streamline regulation and oversight. Statement D is incorrect. The University Grants Commission (UGC) is a major regulatory body for university education, but it is not the only existing regulatory body in higher education. Other important regulatory bodies exist for specific professional fields, such as the All India Council for Technical Education (AICTE) for technical education, the National Medical Commission (NMC, formerly MCI) for medical education, the Bar Council of India (BCI) for legal education, the National Council for Teacher Education (NCTE) for teacher education, etc.