Here are few effective ways to stay warm during the cold wave:

The most effective and common way to keep yourself warm is to layer up clothes to trap the heat between the layers.

Avoid sitting idly and get involved in some active activities like cycling, jogging, exercising which will rise the body temperature.

Consume tea, coffee, soup which will help to keep you warm and healthy during winter. Ensure to eat nutritious food.

 Laying down carpets, changing curtains and sofa covers to warmer fabrics will let the sunlight come in to keep your house warm.

 A cost-effective way is to use a hot bag or electric gel bag to stay warm.