The government has banned only one item out of all the items falling under these tariff lines, apparently in response to representations from domestic manufacturers of mosquito killer rackets. The minimum import price suggests the idea is to protect them from cheaper imports.
In India, mosquitoes carry and transmit infectious pathogens that cause many diseases such as malaria, chikungunya, dengue fever etc. Also, mosquitoes breed in stagnant water, lakes, temporary water puddles, marshes etc. There is no dearth of such breeding grounds for mosquitoes in India, especially during monsoons or floods and more so in places where poorer people live, such as slums or other areas where the infrastructure to drain away rain water is not very efficient.