I am Usha(Male) and I am a 20 year Vegetarian (not Vegan),I work as a freelancer(Web Designing/Android Dev), so basically and I just sit in front of a computer all the time and make my living.

It has been just over a year since I am doing this but I have put on a lot of weight.

My current configuration:

Weight: 92 Kilograms / 202.825 pounds .
Height: 69 inches / 175.26 cm / 5 ft 9 inch .
BMI: 29.9 (Overweight)

Items I have removed from my diet to help me loose weight:

1. Sweet Soda like coke.
2. Ice Cream
3. Burger/Pizza/French Fry

Items which I want to be removed but can’t:

I don’t want to build a six pack or anything, I just want my tummy to not go places before me. I want to be normal not overweight, but I don’t mind having some strong muscles.

Please note that I am very low on cash, so I can’t afford to get/rent/use any equipment. I however own a mat and a small room and a bar which can be used to do pull up.

I have no experience with any sort of exercises, can you please guide me how and which approach should I take to reduce my weight ?.

Googling gave me the following exercise names:

1. Pull Up
2. Crunches
3. Push Up

What else can I include to help me achieve my goals. Will climbing up and down the stairs actually make any difference? What do people mean when they say do 3-4 sets of Pull Up ?.

I am not sure if it is good or not but my friend suggested to get a heavier pair of shoes so I can loose calories more quickly if I walk.

Thanks