Step 1: Understand the terms Maharatna, Navratna, Miniratna.
These are status categories granted by the Department of Public Enterprises (DPE) under the Ministry of Finance to well-performing public sector companies, giving them greater operational and financial autonomy to function efficiently.
Step 2: Identify the category they belong to.
These statuses are granted exclusively to Central Public Sector Enterprises (CPSEs) - companies where the Government of India holds majority equity; examples include ONGC and NTPC (Maharatna), BEL (Navratna), and IRCON (Miniratna).
Step 3: Understand the significance and confirm.
Maharatna CPSEs can invest up to Rs 5,000 crore in a single project without prior government approval; the other categories enjoy progressively lower thresholds - all within the CPSE framework.
\[ \boxed{\text{Central Public Sector Enterprises}} \]