Lounge provision at Nashik Airport (ISK) is limited rather than absent, so the honest picture sits between a full no and a major-hub yes: expect a small on-site option at most, not an airline-club or Priority Pass network anything like what a bigger Indian airport would carry. Nashik, officially Gandhinagar Airport, serves Maharashtra's wine-region and pilgrimage city of the same name.
Domestic schedules out of Nashik run at a modest frequency, geared toward business travel connected to the region's industrial base and the wine-tourism trade around it, rather than the volume of passengers that pushes an airport toward building extensive lounge infrastructure. Airlines and card-network operators tend to follow passenger numbers when deciding where a lounge is worth the investment, and Nashik's schedule has not reached the scale that triggers that kind of build-out. Nashik is also one of the four cities that hosts the Kumbh Mela pilgrimage gathering on its rotating cycle, a period when road and rail traffic into the city swells far more than air travel does, underlining how little of Nashik's visitor volume actually moves through its airport.
Anyone connecting through Maharashtra with lounge access as part of the plan should look instead to Mumbai's Chhatrapati Shivaji Maharaj International Airport, among the busiest hubs in the country and home to a wide range of airline lounges, Priority Pass venues, and premium-card programs spread across multiple terminals. Most travelers heading to or from Nashik connect through Mumbai at some point, which makes it the sensible place to build any real lounge stop into an itinerary rather than expecting one locally.
Flying directly to Nashik for business or the surrounding wine country, plan on the airport functioning as a fast, practical regional gateway rather than a lounge stop, and check directly with the airport or your airline for whatever modest premium seating currently exists on site, rather than assuming it will resemble the facilities at a hub the size of Mumbai.