Lakshwadeep Islands will be the first in India to use bacteria in toilets. The Defence Research and Development Organisation (DRDO) will be installing 21 such biological toilets in Kavaratti and other islands. The biological toilets will use a bacteria called psychrophilic found in Antartica region. The bacteria thrive on the waste and deliver a residue that is odourless, non-pathogenic and has no toxicity, thus making it eco-friendly.