<P> The assembly met in sessions open to the public , for 166 days , spread over a period of 2 years , 11 months and 18 days before adopting the Constitution , the 308 members of the assembly signed two copies of the document ( one each in Hindi and English ) on 24 January 1950 . The original Constitution of India is hand - written with beautiful calligraphy , each page beautified and decorated by artists from Shantiniketan including Beohar Rammanohar Sinha and Nandalal Bose . The illustrations on the cover and pages represent styles from the different civilisations of the subcontinent , ranging from the prehistoric Mohenjodaro civilisation , in the Indus Valley , to the present . The calligraphy in the book was done by Prem Behari Narain Raizda . It was published in Dehra Dun , and photolithographed at the offices of Survey of India . The entire exercise to produce the original took nearly five years . Two days later , on 26 January 1950 , the Constitution of India became the law of all the States and territories of India . Rs. 1 , 00 , 00,000 was official estimate of expenditure on constituent assembly . It has undergone many amendments since its enactment . </P>
who had illuminated the original document of constitution of india
artists from Shantiniketan Beohar Rammanohar Sinha Shantiniketan