What can a engineering student do in free time to earn some part time money?

I know that a engineering doesn't have free time to do any thing else, even the life of an engineer is like an employee of a marketing business who doesn't have time for his girl friend. But here I am giving some options that can an engineering student do while studying without spoiling his/her study. And also this will not affect exam results, even supply or back or re holders can do these jobs.

Blogging

You can run a blog like me on any topic you are interested, blogging is quit simple and today's smart phones make it more easy through blogging apps on your phone. You can have a free blog or paid both can earn some part time money for you. You just have to get a blog from any free or paid hosting site, it is quit simple than learn a features of a smart phone. And start posting on your blog like writing a love letter for money on any topic as you want. First you should try to start from a free blog form free hosting sites like blogger, WordPress etc. you can ask any inquiry below in the comments to know more about blogging.

Online buying and selling from eCommerce site

You can also make huge money by online buying and selling products. Any kind of product can be buy and sell online through e commerce sites. Each e-commerce site provide opportunities for the new marketers who want to increase their business online and also they provide free and paid subscription on their sites. But it needs a small amount to start with about 1000 to 10000 Rs. So if you have any interest in buying and selling online , you can start now.

Website making

if you have interest in website making and make something creative for the internet users, then you can make a website but it needs the knowledge of several languages like html, java, css, php. It is quite to make a website but it can earn for you lifetime once you created your own website on any topic.

Online survey

You can take part in online survey’s and earn up to 500 a day by just filling forms online, they are not fake they really pay as you have read about the surveys mention in newspaper are also like this . you just have to take part in a survey which is organised by many social organisations, simply register in them and start filling form giving by them.