Where to get free ISRO Mechanical question papers for Scientist recruitment?

The following are some sites on which you will get previous years question papers. You can see Indiastudychannel question paper sections also.

1. https://www.indiajoining.com/. Refer to this site. you will get previous years ISRO question papers solved in PDF format.
2.latestjobs.co.in. This site gives you the last 10 years old papers and you can download free from the site. This site will also gove model papers and sample papers for 2020.
3. www.geeksforgeeks.org. This site will give you solved old papers from 2007. You will also find the explanations for the questions given.
4. www.gatexplore.com. You will find old question papers from ISRO recruitment of previous years can be downloaded.
5. gradeup.co. On this site, you can practice answering old ISRO papers for scientists recruitment,

There are many sites which claim to contain various question papers related to so many entrance or regular examinations being conducted in our country every year by so many organisations including ISRO.

One particular site www.recruitmentindia.in contains last 5 years ISRO scientist papers in PDF format and they have mentioned that the questions are solved also there. You can see their claim and download the question papers.

You can alternatively search them here itself in ISC sections. Some other sources worth trying are - www.isro.gov.in, www.testbook.com, www.recruitment.guru, www.jobschat.in, www.freshersnow.com, www.geeksforgeeks.org and www.drona.in