The cost of root canal treatment with capping varies widely. Factors such as the location of the dental office, the experience and expertise of the dentist, and the complexity of the procedure can all affect the cost. On average, the cost can range from INR 3,500 to INR 27,000. It's important to consult with your dentist and insurance provider to determine the exact cost for your specific situation. Remember, it's important to prioritize your oral health and seek treatment when necessary.