1. Blogging
Blogging is one of the best and an easiest platform to earn money which needs zero (0) investment to start your job / business, blogging makes you an author of your own opinions and your own ideology. You can use any of platforms for starting blogging.
Blogger.com
Wordpress.com
2. Android Development Applications
The students of Pakistan have to learn then go to earn by using their skills in making android apps either that are games, app, entertainment, any puzzles, blogging app and by those apps, they can earn a huge amount of money.
3. Start your own business
In US, there are millions of business running where they have many platform to earn money in US. In Pakistan, our Govt must have to increase their economy first, then it would be more suitable to start our own business which will be more profitable for us.
Start from small business along with a team work.
4. Start a photography media
In student life you can polish your skills and interests to earn money and making your interests into professional. Make your business card, attend the weddings and other big festivals where the people will hire you to make their picture and media videos and your will earn form there.
5. Tutoring
It is very easy to start your home tutor facility if you are a graduate and want to earn more than a job, you can simply start home tuition to any class. You can get a start from only one student and it will spread with time and you will make good money from this in your student life too.