B.Arch

No, but if you want good professional job, you will have to write NATA/JEE, like if a company see your marks regarding the competitive exams, then they will select you. I would suggest you to write JEE/NATA.

I can't tell you about rank, but I think 220+ marks are sufficient to get a good college of architecture.

It is all about your JEE Mains rank.

Dear,
None of university or Institute can offer you the admission for B.Arch without Nata or JEE mains score. If any of the university or institute offer you such admission, then do check the recognition and approval from concern authority.

Kindly refer to the link mentioned below:
http://www.payscale.com/research/IN/Degree=Bachelor_of_Architecture_(BArch)/Salary

There are a lot of good government colleges, in which state are you looking at ? check the link for Council of Architecture approved Architecture colleges - https://www.coa.gov.in/show_img.php?fid=216

Hi,
If you get good scores in NATA 2017, then you can choose from RVSA or BMS or Dayanand or BGS School of Architecture and Planning.

Hi,
Architecture today is the most preferred course since planning buildings and cities are a major concern for the future. With many smart city planning needed, India has a shortage of Architects. The profession also lets you choose your passions accordingly such as -
Entrepreneurs
Architects (Junior/ Senior)
Furniture design
Photography
Construction& Community based volunteering
Infrastructure development
Graphic design
Set Design
Jewelry design
Advance research in Architecture
Faculty @ School of Architecture
History, Restoration and Preservation
Interior design
Product design
Landscape Design
Project/ Construction Management