How to stay fit at work?

Staying fit at work is a big challenge and something that takes dedication and hard work. If you have a full time job and you sit behind the desk for most of the day, then you might be liable to put on a few pounds. Keeping yourself active is the key to staying fit at work. Take the stairs every time and stop using the elevator. This is a sure shot way of keeping fit, even if you sweat a lot.  Park away from the office entrance and make it a habit to walk for a bit. Helps more than you realize.

Hi Neha,
Carry healthy foods or snack to your office like fruits,some healthy snacks,buttermilk which taken in between heavy meals will help you too increase your metabolism and will not let you eat the junk food from canteen.,
# Squeeze a stress ball repeatedly for a minute in each hand. Aim to form a tight fist each time. This will increase forearm strength and joint strength in the hands. It gets the blood flowing too, which is good for heavy keyboard users.
# Replace Your Office Chair with a Balance Ball
The body responds to the instability of the ball, requiring the engagement of a variety of muscle groups, so you get constant gentle conditioning while sitting on it.
# Take a Break for Calisthenics
More than just stretching, calisthenics can be excellent exercise for those short on time or space. Take short breaks throughout the day to do a few exercises, like leg lifts while sitting at your desk, or calf raises while waiting for the coffee machine. When visiting the restroom, take a few extra minutes to do some wall push-ups before heading back to your desk.
# Speak to Your Boss About Corporate Fitness Initiatives

Nice points bhavini, Having proper balanced diet with all essential nutrients for healthy with regular exercise & lifestyle modification. Drink plenty of water 2-3liter daily.