https://www.desidime.com/deals/acasa-16a-wi-fi-pro-smart-plug-alexa-google-home-compatible-surge-protector-energy-monitor-for-high-power-appliances?page=1#post_9550692
These have no customer service and i had a few break under warranty with email and phone numbers defunct. Flipkart Customer service also confirmed they have no idea whom to contact for After-sales.