Answer by Harini Pandiyan

As of November 2021, the value of 1 USD is 74.33 INR, so 1 billion USD will be INR 74,32,60,50,000. (Trivia: 1 billion dollars in India is known as 100 Crores)

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History of USD vs. INR

At the time of independence, 1 USD value was 4.76 INR; subsequently, the USD value kept increasing for various reasons. Check the table below to know more:

Year 

USD Value in INR

Reason

1966

₹ 7.50

1962 Indo-Chain war

1965 Indo-Pak war

1973

₹ 17.50

Oil Crisis with OAPEC

1990

₹ 25.92

Economic Crisis (rapid fall in GDP)

2004

₹ 45.32

Impact of Economic Crisis Continued

2016

₹ 68.80

Demonetization of Indian currency

2021

₹ 74.3

Crude Oil Crisis