what is the preface of constitution of india

what is a preface of the constitution of India

the following preface is from  the constitution of India  dated as on 1st April 2019 , you can download the original file here link is given below ...

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PREFACE
This edition of the Constitution of India reproduces the text of the Constitution of India as amended by Parliament from time to time. All amendments made by the Parliament up to and including the Constitution (One Hundred and Third Amendment) Act, 2019 are incorporated in this edition. The foot notes below the text indicate the Constitution Amendment Acts by which such amendments have been made.
The Constitution applies to the State of Jammu and Kashmir with certain exceptions and modifications as provided in article 370 and the Constitution (Application to Jammu and Kashmir) Order, 1954. This Order has been included in Appendix I for facility of reference. Appendix II contains a re-statement of the exceptions and modifications.
The Constitution (One Hundredth Amendment) Act, 2015 containing details of acquired and transferred territories between the Governments of India and Bangladesh has been included in Appendix V.
The text of the constitutional amendments relating to the Constitution (Forty-fourth Amendment) Act, 1978 and the Constitution (Eighty-eighth Amendment) Act, 2003, which have not yet come into force, have been provided in the text at the appropriate places wherever possible or otherwise in the footnote. 

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