due to sedentary lifestyle or work from home in pandemic situation is became a common problem for many individual by gaining weight due to various reasons. my suggestion to you, consult a physiotherapist and go according to the graded exercises for a speculated time, where therapist will plan the exercises which will help reducing the body weight by reducing the fat, not by muscle mass, as well as the strengthening exercises which will help to maintain the good health of body. Another point is  nutrition values, under the guidance of nutritionist along with the exercise protocol prescribed by the qualified physiotherapist will help in keep you healthy

You can reduce it with exercises like side plank, plank, brisk walking for 45 minutes daily, side bending exercise etc. You should do the exercises with proper guidance to avoid strain or injury.

Do abdominal strengthening exercises and hip exercises to reduce fat acculmulation and to build strength in muscle.

Hi You can try abdominal crunches, butt bridges, flutter kicks, crunch kicks, cobra stretches, dead bug, jumping jacks and high stepping. These are some of the exercises which help you for burning the abdominal fat. You can get all these exercises online that's why given the names here. It will take little to see the change and on regular practice you can see the changes. Take care ..... Stay safe