The Constitution of India was drafted by the Constituent Assembly. The Constituent Assembly held its first sitting on the 9th December, 1946 . It reassembled on the 14th August, 1947 , as the sovereign Constituent Assembly for the Dominion of India. The proposed Constitution had been outlined by various committees of the Assembly like:

a) Union Constitution Committee
b) The Union Powers Committee
c) Committee on Fundamental Rights.

It was after a general discussion on the reports of these Committees that the Assembly appointed a Drafting Committee on the 29th August, 1947 . The Drafting Committee, under the Chairmanship of Dr. Ambedkar, embodied the decision of the Assembly with alternative and additional proposals in the form of a 'Draft Constitution of India which was published in February, 1948. The Constituent Assembly next met in November, 1948, to consider the provisions of the Draft, clause by clause. After several sessions the consideration of the clauses or second reading was completed by the 17th October, 1949 . The Constituent Assembly again sat on the 14th November, 1949 , for the third reading and finished it on the 26th November, 1949 , on which date the Constitution received the signature of the President of the Assembly and was declared as passed. The provisions relating to citizenship, elections, provisional Parliament, temporary and transitional provisions, were given immediate effect, i.e., from November 26, 1949 . The rest of the Constitution came into force on the 26th January, 1950 , and this date is referred to in the Constitution as the Date of its Commencement.

Preamble: WE, THE PEOPLE OF INDIA, having solemnly resolved to constitute India into a SOVEREIGN SOCIALIST SECULAR DEMOCRATIC REPUBLIC...

Fundamental Rights: Indian Government have provided six basic rights to every citizen India . So, as to provide a democratic environment for the peopel of India to live in. Here, we are describing each fundamental right in detail to help you in understanding our constitution.

Fundamental Duties: These Fundamental rights have been provided at the cost of some fundamental duties. These are considered as the duties that must be and should be performed by every citizen of India .

Official and Regional Language of India: Subject to the provisions of articles 346 and 347, the Legislature of a State may by law adopt any one or more of the languages in use in the State or Hindi as the language or languages to be used for all or any of the official purposes...