Here's the link for each month for every country: https://travel.state.gov/content/travel/en/legal/visa-law0/visa-statistics/immigrant-visa-statistics/monthly-immigrant-visa-issuances.html. Once you click the Month/Year you want to view, a new window will open. You then have to scroll down and find Mumbai, and there is an exact breakdown of visa type+visas issued per type. This is for April 2022, Mumbai: https://travel.state.gov/content/dam/visas/Statistics/Immigrant-Statistics/MonthlyIVIssuances/APRIL 2022 - IV Issuances by Post and Visa Class.pdf