There are many excellent hospitals and clinics in India that offer dermal filler treatments. Some of the best include:

1. Apollo Hospitals: With locations in major cities across India, Apollo Hospitals is one of the country's premier healthcare providers. They offer a wide range of cosmetic treatments, including dermal fillers.
2. Fortis Hospitals: This chain of hospitals has a reputation for providing high-quality medical care and has several locations across India. They offer a variety of cosmetic treatments, including dermal fillers, and have a team of experienced and well-trained doctors.
3. Max Healthcare: This hospital chain is known for its state-of-the-art facilities and top-notch medical staff. They offer a range of cosmetic treatments, including dermal fillers, and have a reputation for excellent patient care.
4. The Esthetic Clinics: The Esthetic Clinics are a chain of clinics that are known for their expertise in cosmetic treatments, including dermal fillers. They have several locations across India and have a team of experienced doctors who use the latest technology and techniques.
5. Kaya Skin Clinic: Kaya Skin Clinic is a chain of clinics that specializes in skin care and cosmetic treatments. They have several locations across India and offer a variety of dermal filler treatments, as well as other cosmetic procedures.

It's worth mentioning that these are some of the best hospitals and clinics in India for dermal filler treatments, it is always important to do your own research and consult with a licensed medical professional to determine the best course of treatment for your individual needs.