I'm seeking an all-rounder car under ₹20 lakh that offers strong performance, comfort, and driving pleasure. It should deliver good mileage when driven responsibly, have a well-insulated cabin, an exceptional music system, and ample boot space. Reliable after-sales service, strong resale value, and the ability to handle various road conditions, including rural areas, are also important. I'm willing to stretch my budget slightly for a car that provides peace of mind and meets these criteria.

Given your requirements, the Hyundai Creta is a good choice. It offers great resale value and reliable service. Higher variants come with a Bose sound system, impressive refinement, and pleasant ride comfort. If you’re open to a diesel (keeping in mind resale could be a concern in a few years), the diesel-automatic SX(O) is ideal. Otherwise, the turbo-petrol variant delivers ample performance. It’s best to avoid the N Line, as its larger wheels affect ride comfort.

If a fun driving experience is your priority, the Volkswagen Taigun and Skoda Kushaq 1.5 TSI DSG are worth considering. They feature strong engines, fun handling, punchy sound systems. Their tough build is also something you'll appreciate over broken roads.