Go for B. Arch.  Admission will be based on percentage in 12th and score in entrance exam such as NATA or JEE Main. No candidate with less than 50% marks in aggregate shall be admitted to the architecture course unless he/she has passed an examination at the end of the new 10+2 scheme of Senior School Certificate Examination or equivalent with Mathematics as subjects of examination at the 10+2 level or 10+3 Diploma (any stream) recognized by Central/State Governments with 50% aggregate marks or International Baccalaureate Diploma, after 10 years of schooling with not less than 50% marks in aggregate and with Mathematics as compulsory subject of examination. Pass in NATA exam I. e 80 marks out of 200. 

50% marks in 10+2 with mathematics as compulsory subject. 
2. JEE Mains PAPER - 2 Architecture exam - lets you get admission in IITs, National Institutes of Technology and other Government colleges. Bachelor of Architecture: Top Institutes with their fee structure
Centre for Environmental Planning & TechnologyAhmedabad- INR. 1, 61,000
Lovely Professional University INR. 19,500
Jadavpur UniversityKolkata INR. 2,730
School of Planning & Architecture Delhi INR. 46,300.

Average fees for this course in government colleges ranges from INR 1.5 to 2.5 Lacs and in private institutes, it ranges from approximately. INR 2.5 to 5 Lacs. After the successful completion of this course, the students can pursue their career in the architecture sector with the average salary range between INR 2.5 to 5 LPA.

Dear student,

I would like to suggest you that if you have a real good interest in architecture and want to persue and make a career in it then go for B.arch. Dont get confused with BE. 

All the best.I hope this was helpful to you.