Neem oil acts as a great indoor mosquito-repellent owing to its smell that wards off mosquitoes. One can make an effective insecticide by mixing neem oil and coconut oil in equal proportion and rub it on the exposed parts of a body.

Another natural method to keep mosquitoes at bay is to plant Tulsi near the window panes. The plant has properties that do not allow mosquitoes to breed.

A mixture of lemon oil and eucalyptus oil is extremely effective in warding off mosquitoes naturally. Both have the active component cineole in it carrying antiseptic and insect repellent properties, which makes them effective when applied to the skin.

Camphor is an easily available ingredient that kills mosquitoes in a house. Made from the extract of a tree, this compound has been found to have the longest mosquito repellent effect as compared to other natural products. Burning camphor in a closed room can be extremely effective in keeping mosquitoes at bay.

Garlic might smell bad, but that is exactly why mosquitoes stay away. All you need to do is crush a few pods of garlic, boil them in water and spray the liquid in the room.