Assertion (A): Right of livelihood and right to food are part of Article 21 of the the Indian Constitution.
Reasoning (R): Right of livelihood and right to food has been brought into the ambit of Article 21 by the Constitutional Amendment.

A is correct but R is false.

Even though the drafters did not include specific rights such as livelihood and food, within the constitutional ambit of enforceable fundamental rights, they are now made available to the citizens of India as matters of rights. This has been possible only by the interpretation and rule making function of the courts in India.