This video about Article 31A of Indian Constitution .. This Article have 5 sub clauses...That clauses states that when the government acquire private individuals property even though it violates article 14, 19....When means

(a) Acquisition by the State of any estate

(b) Taking over of the management of any property

(c) Amalgamation of two or more corporations

(d) Extinguishment or modification of any rights

(e) Extinguishment or modification of any rights of mining/Lease