| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.6 / 5 (32 reviews) | Delhi, India | — | — | ECG | — | — | Joint Commission International , Indian National Accreditation Board for Testing and Calibration Laboratories | |
| #2 | 4.2 / 5 (9 reviews) | Delhi, India | — | — | ECG | — | — | Joint Commission International , The Week magazine ranking |