Dr. A. B. Singh has more than 40 years of research experience in pollen and fungal allergy and was the coordinator of multi-centered project on "Aeroallergen and Human Health," sponsored by the Ministry of Environment and Forest, New Delhi, India. He has completed many projects from United States Environmental Protection Agency (EPA), the Indian Council of Medical Research, and the Ministry of Environment and Forest of India, surveying pollen and fungal allergens and identifying the important allergens that trigger allergic symptoms, such as asthma, rhinitis, and dermatitis etc. He worked at the Nebraska University (USA) as the Borlaug Fellow on genetically modified food safety assessments and has been involved in a EPA-funded project on Legume Food Allergies in India. He has also compiled a National Pollen Calendar of India for allergy diagnosis and treatment. He was formerly Vice President of the Asia Pacific Association of Allergy, Asthma and Clinical Immunology (2010–2013) and served on several committees of World Allergy Organization (WAO). Other roles included Secretary General of South Asia Association of Allergy, Asthma, and Clinical Immunology (SAAACI), Secretary of the Indian College of Asthma and Applied Immunology (ICAAI), and Member Executive Council of the Indian Aerobiological Society (IAS). He has reviewed many projects from different funding organizations and is a regular reviewer of several international journals of allergy and immunology. He has been the founding Editor-in-Chief of the Indian Journal of Aerobiology since its inception in 1982 and is also Associate Editor of the Indian Journal of Allergy and Immunology. He has delivered more than 250 guest lectures and invited talks at international and national conferences on allergy, asthma and aerobiology in different countries and in India. He has extensively traveled abroad to USA, Canada, Europe, Australia, and South East Asia, etc., as a visiting faculty and guest speaker. The awards and honors he has received include the Charles Richet Prize for Fundamental Work in Allergy and Scientist of the Year by the National Environmental Science Academy (India). In addition, Dr. Singh has received a life-time achievement award from International Asthma Services (USA). He has delivered many oration lectures at various scientific forums, supervised more than 20 PhD and MPhil students, and has published more than 200 research papers in international and national journals of repute and chapters in different books.