As per many of the advertisements shown in the television, mosquitoes do die if mortein or just mosquito repellent are used. I searched on the internet and found this -
Its job is to repel mosquitoes, but in higher concentrations of its smoke, it paralyses the mosquito and ultimately kills it. Mosquito coils were typically made from a dried paste of pyrethrum powder but now a days, they’re made of synthetically produced Pyrethrin.
We being jain should not take any risk in terms of violence. So I think it’s better to not use any such repellent.
The best thing to use is mosquito net (saying it by my personal experience).