Rajiv Gandhi Institute of Technology, Kerala

Both of them are totally different universities. CUSAT is considered of the best Universities. At the same time KTU (under which RIT is) is a new one where its first batch graduated last year.

Internships are not provided by the college, but anyone wishing to do an internship at any other firm can get a letter of recommendation from there respective head of the department. The major companies that visit this college for recruitment include:
1: Mahindra and Mahindra
2: Cap Gemini
3: Voltas
4:

Placement scenario for mechanical engineering:
Average Package: 5 LPA
Median package: 5.5 LPA
Minimum Package: 3.3 LPA
the highest package: 16 LPA by Schlumberger
Some prominent recruiters are listed below. Top companies which came to this college for placement:
Cavinkare, Wipro, Bristle Cone I Ltd. , NSD

Please use college predictor
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.shiksha.com/mba/resources/mahcet-college-predictor&ved=2ahUKEwiAzo3mmrPiAhUC4o8KHYhhDYAQFjAAegQIAhAB&usg=AOvVaw1Tz-M8Wwfw59cz-zXBrIhl

Dear Anju, as per their website, they don't offer B.Arch.
Check the link below-
http://www.rgit.ac.in/faculty-accordion
Good luck.

No, it is not a government college.