The consular exchange rate is revised to INR 76 to a US$ with effect from June 15, 2020. This revision will affect all immigrant and non-immigrant visa related fees payable at any Consular post in India. Applicants who paid the visa application fee on or before June 14, 2020 can use the receipt to schedule an appointment within 1 year from the date of payment of the visa application fee. 

The latest exchange rate can be found here.