NATA

Hello,
Hope you are doing well. No, there isn't any college which gives admission on the basis of 12th marks for architecture. Every college needs at least your appearance in NATA. NATA is a compulsory examination and also only a few colleges offer admission through JEE Mains paper 2. So, in order to get admission, you need to take NATA.

Yes, it is compulsory.

Yes, you can get it.

You need to appear for IPU_CET which is carried out by GGSIPU and the rank in this exam determines which college you get. Your JEE scores won't matter.
Good luck.

You need to appear for IPU_CET which is carried out by GGSIPU and the rank in this exam determines which college you get. Your JEE scores won't matter.

NATA result will be available in three formats:
1. Marks obtained out of 200 and in each component.
2. Merit listing based on marks and tie-breaking rules.
3. Percentile score based on the merit listing.
Following rules will determine the qualifying marks for NATA 2017:
Minimum 25% must be secured in MCQ portion (30 out of 120).
Minimum 25% must be secured in Drawing portion (20 out of 80).
Overall qualifying marks (out of 200) would be based on post-exam statistics and at the discretion of the Council.

Yes, with this score, you can expect a seat.
According to the last year's marks, it is possible for you.
But in 2015 and 2016, the marks required were a bit higher than this.
So you can expect a seat but keep an eye on other colleges also.

For taking admission in IPU, you have to appear for a separate exam which is IPU-CET carried out by GGSIPU.
For eligibility criteria please refer:-
http://www.ipu.ac.in/pubinfo/admission2018/adm2018main/ADMBRO2018A_190218.pdf.