Explanation: Important facts about Indian Constitution:

• Elephant was adopted as the symbol (seal) of the Constituent Assembly.
• Sir B.N. Rau was appointed as the constitutional advisor (Legal advisor) to the Constituent Assembly.
• V.R. Iyengar was the Secretary to the Constituent Assembly.
• N. Mukerjee was the chief draftsman of the constitution in the Constituent Assembly.
• Prem Behari Narain Raizada was the calligrapher of the Indian Constitution. The original constitution was handwritten by him in a flowing italic style.
• The original version was beautified and decorated by artists from Shantiniketan including Nand Lal Bose and Beohar Rammanohar Sinha.
• Beohar Rammanohar Sinha illuminated, beautified and ornamented the original Preamble calligraphed by Prem Behari Narain Raizada.
• The calligraphy of the Hindi version of the original constitution was done by Vasant Krishan Vaidya and elegantly decorated and illuminated by Nand Lal Bose

Explanation: Laxmikanth