**Core Concept**
The National Blindness Control Programme is a government initiative aimed at reducing the prevalence of blindness in India. The programme requires significant funding to implement its objectives, which include conducting eye surveys, providing eye care services, and promoting public awareness about eye health.

**Why the Correct Answer is Right**
The correct answer is related to the funding mechanism for the National Blindness Control Programme. The programme receives funding from the central government as well as from external agencies such as the World Health Organization (WHO) and other international organizations. The funds are utilized to support various activities, including eye care services, training of healthcare professionals, and research on eye diseases.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not accurately represent the primary funding agency for the National Blindness Control Programme.
**Option B:** This option is incorrect because it is not a government agency responsible for funding the programme.
**Option C:** This option is incorrect because it is a non-governmental organization that may provide some support, but it is not the primary funding agency.

**Clinical Pearl / High-Yield Fact**
The National Blindness Control Programme is a prime example of a public-private partnership in the field of healthcare, where government agencies, international organizations, and civil society organizations collaborate to achieve a common goal.

**Correct Answer: C. National Programme for Control of Blindness (NPCB).**