The principle that the Constitution of India has a ‘basic structure’ o

The principle that the Constitution of India has a ‘basic structure’ or ‘features’ which could not be amended was laid down in which one of the following judgements ?

Shankari Prasad vs Union of India (1951)
Golak Nath vs State of Punjab (1967)
Keshavananda Bharati vs State of Kerala (1973)
Minerva Mills vs Union of India (1980)
This question was previously asked in
UPSC CISF-AC-EXE – 2017
The landmark judgement of the Supreme Court in Kesavananda Bharati vs State of Kerala (1973) laid down the doctrine of the ‘basic structure’ of the Constitution. The court held that while Parliament has the power to amend the Constitution, it cannot alter its basic structure or essential features.
The Basic Structure Doctrine limits the Parliament’s amending power, ensuring that the fundamental principles and essential features of the Constitution are protected.
The cases Shankari Prasad (1951) and Golak Nath (1967) dealt with the Parliament’s power to amend Fundamental Rights, leading up to the formulation of the basic structure doctrine in Kesavananda Bharati. The Minerva Mills case (1980) further strengthened and applied the doctrine.