When considering deep cleaning for your 3BHK in Kanpur, the cost can vary depending on several factors, such as the size of your apartment, the level of cleaning required, and the service provider you choose. On average, you might expect to pay anywhere from ₹3,000 to ₹7,000 for a thorough deep cleaning service. This typically includes scrubbing floors, cleaning windows, sanitizing bathrooms, and more. Some services also offer add-ons like sofa or carpet cleaning for an additional fee. To get the best deal, it's a good idea to compare prices from different providers and read reviews to ensure quality service.