B.Arch

Of course, you will get a seat in SPA for B.Arch. This score and marks in plus two is enough for admission in this campus.

Yes, you will get a seat in management quota. This score is enough for Dayanadasagar college.So keep going.

For admission in Jadavpur University, architecture department WBJEE GMR(General Merit Rank ) is necessary along with qualification in NATA. That means only NATA score is not enough for admission in B.Arch, you must appear or have had appeared in WBJEE and secured a good rank. FYI last year i.e. for 2015, opening and closing ranks for general category were 861 and 4767 respectively.
Hope it helps.

Admission is through Tamil Nadu Engineering Admissions TNEA counselling based on the score obtained in NATA. Minimum eligibility to apply is that candidate should have cleared class 12th exams with Mandatory Subject : Mathematics. Other eligibility criteria:
Candidates having 10+3 Diploma (any stream) recognised by Central/State Government with 50% aggregate marks with Mathematics or international baccalaureate Diploma passed/appearing after 10 years of Schooling with 50% marks in aggregate and with Mathematics as compulsory subject of examination are eligible to apply. Regards.

Please check for your eligibility to get admission for B.Arch from Allana College of Architecture in the link provided below:
https://www.shiksha.com/architecture-planning/course/b-arch-allana-college-of-architecture-kondhwa-budruk-pune-85328

Yes, you can get a seat in RIZVI College of Architecture.This score is enough for a seat in the same campus.

Hello,
Hope you are doing well. No, you are not allowed to get NITs with 152 marks and 64.8% in CBSE because you are from general category and your marks do not satisfy NITs cut-off offered for general category. You can try for some other colleges which accept JEE Mains paper 2 score and ranks.
NITs won't be possible for you.
All the best.

Architecture is a 5-year course in India and a 4-year course in the European countries.
It's considered as one of the toughest undergraduate programs in the world.
In fact, I believe that there is also a Guinness World Record for architecture to be the toughest undergraduate programme as many students leave the course in between.