Dr. Virendra Singh » is the leading Chest expert in India. Caring for & treating difficult asthmatic patients is his passion. He has treated almost 1 million patients, including 3 lacs asthmatic & COPD patients, during the last 40 years of practice. Interstitial lung disease (ILD) & Sleep apnea are other areas of his expertise. He is the director of Asthma Bhawan & President of RHL, a prestigious 250-bed multi-speciality hospital in Jaipur.