Mosquitoes - They are one of the deadliest insects in India and are responsible for transmitting diseases like malaria, dengue fever, and chikungunya.
Cockroaches - While not usually deadly, cockroaches in India can carry disease-causing bacteria and contribute to the spread of diseases like salmonella.
Sandfly - The bites of sandflies can cause a potentially fatal disease called visceral leishmaniasis or kala-azar.
Ticks - They can transmit tick-borne diseases like Lyme disease, which can lead to chronic symptoms and severe complications if left untreated.
Hornets - The Asian giant hornet and the Indian hornet are two species found in India that can cause severe stings and are potentially deadly to humans.
Bees - In India, African honeybees have been known to cause fatal attacks on humans due to their highly aggressive behavior.
Bed bugs - Though not usually deadly, bed bugs in India have been known to transmit diseases like hepatitis B and Chagas disease.
Leeches - While not usually deadly, leech bites in India can cause severe bleeding and can transmit diseases to humans.
Scorpions - The Indian red scorpion, found in India, is highly venomous and can be deadly, especially for young children and the elderly.
Spiders - While most spider bites in India are not usually deadly, the venomous funnel web spider and black widow spider have been known to cause serious complications.
Caterpillars - The Indian flannel moth caterpillar is highly venomous and can cause severe skin irritation, abdominal pain, and other symptoms.
Please note that while these insects can be dangerous, most of them do not pose an immediate threat to humans if left alone.