Architecture Entrance Exam

The average of your Boards and NATA scores are accepted For JJ College of Planning and Architecture. With these marks, you are not likely to get into it. Still you have NITs and many other colleges which you can get. Recommendations be NIT Calicut, Kozhikode, BMS College of Engineering, RV College of Engineering, etc. All the best.

You'll not get NITK with these marks. Nor any of the NIT. I would suggest you to go for other private colleges for B.Arch . Moreover, for government, there are least hope with colleges with home state quotas. Best of luck.

Yes, you can get admission there with JEE Mains paper 2.
70 out of 200. According to last year cut off, you have very fair chances.
2013: 1784-5489
2014: 861-4767
These are the cut-off rank:
This year, the cut-off rank will go down drastically for sure (reason, Besu getting centralized and it won't be admitting students on WBJEE Merit).
70 marks would get you rank around 5 k -6 k. So, it is pretty much difficult making it into architecture , but then miracles do happen.

The minimum score one should have is around 250 or above for getting into CCOA, Punjab (for general). Still, there is very less number of seats (around 50 ), so nothing can be said at concrete. There are though lot of another colleges with similar reputation and you need not to worry, if you get around 250 marks.

The admissions are done on the basis of JEE Main rank so to get a rough idea about the college you can get through below link:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor.

It'll be difficult as according to last year's cutoff, you need at least a rank under 1500. Though, it is close, you can go for counselling. Try for another NIT (be it Kozkhikode) or go for BMS college of engineering or RV college . Or have a plan B too. Best of luck.
PS : chances for NIT Calicut are less.

For it, you at least need marks above 200, as per the last year cutoff (for general category). Also, it'll be difficult with OBC. Best of luck.

It is one of the top colleges, you at least need 240 marks in Mains paper - 2 in general category to get into it. Moreover, you also at least 280 for JJ College of Architecture.

Kindly mention the institute's name.

Assuming you are from general category, on the basis of paper - 2, with JEE Mains, you are likely to get private colleges only. Go for their entrance if you wish to. Moreover, try to GET into colleges through NATA scores (if given). Best of luck.