Colleges in Roorkee

Hello,
Use Shiksha College Predictor to know your chances: https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor.

There is an article that will make you clear about the branch change procedure.
Link: https://www.shiksha.com/b-tech/articles/branch-change-at-iits-things-to-remember-blogId-14725.

There is an official link of there placement records, take a look at it.
Link: https://www.iitr.ac.in/departments/ME/pages/Academics+Placement_Record.html.

IIT-R placements are better than IIT-G. IIT-G has more peaceful environment and nature as an advantage. Academics is much easier at IIT-G. The administration is better, alumni base is stronger, and campus is around 2.5 times bigger and beautiful. The research facilities are better. Professors at IIT-R are more distinguished and experienced. It has location disadvantages in terms of transport facilities. Go for IIT-R mechanical engineering, if you ask me.

It is just fake news that you have got and nothing else. Both the institutes are participating in JoSAA 2018, as usual.

Click on the link and watch the video till end after watching the video you could do comparison of these colleges. https://youtu.be/3YAzEP1vgvQ.

Chemical Engineering is such a branch of engineering that it is offered only in selected top institutes in India. All IITs are good for it, especially old IITs such as IIT Madras, IIT Bombay, IIT Delhi and IIT Kanpur. Many top researchers and professors in Chemical Engineering are born in these institutes. Being a backbone of all fields, good exposure to courses and experiments is essential for becoming a good Chemical Engineer which is offered in IITs. Best Chemical engineering college in India:
IIT Bombay,
IIT Delhi,
IIT Kanpur,
IIT Kharagpur.

Hey,
It will be difficult for you to get admission with respect to previous year's closing rank in B.Arch. But do check on the link below to get an idea of which colleges you can apply for-
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
All the best.

It depends only on you and your interests what you want to study further.