hi ashwini,welcome to health care magic, your weight increase could be due to sedentary lifestyle.So, if you want to reduce weight than eat right food and do some physical activity like brisk walk ,jogging or any other recreational activities.
skiping is also a good exercise if done in a moderation. If you do not have any knee or ankle problem than you can start skipping.
one should avoid skiping in pregnancy
or in any medical condition.