Who described the preamble of Indian Constitution as the 'Political horoscope of the Indian Constitution'?

The correct answer is Kanhaiyalal Maniklal Munshi.

• Kanhaiyalal Maniklal Munshi described the preamble of the Indian Constitution as the 'Political horoscope of the Indian Constitution'.

Additional Information

• The Preamble of the Indian constitution is based on "Objectives Resolution".
• It was drafted and moved by Pandit Jawahar Lal Nehru and adopted by the constituent assembly.
• In the historic case of Kesavananda Bharati (1973), Supreme Court held that Preamble is a part of the constitution and can be amended under article 368, subject to the condition that no amendment is done to the "Basic structure".
• The Preamble has been amended only once so far, in 1976 by the 42nd Constitutional amendment Act.
• The term ‘Socialist’, ‘Secular’, and ‘Integrity’ were added to the preamble through 42nd Amendment Act, 1976. 
• ‘Socialist’ and ‘Secular’ were added between ‘Sovereign’ and ‘Democratic’.
• ‘Unity of the Nation’ was changed to ‘Unity and Integrity of the Nation’.
• By the 42nd Constitutional amendment act 1976, three new words - Socialist, Secular and Integrity are added to the preamble.