Can I get admission in Bachelor of architecture course after passing diploma in architecture course.

Yes you can get admission in Bachelor of architecture course after passing diploma in architecture course.. here I am giving you information about required eligiblity for admission in B arch course .

Bachelor of Architecture Eligibility
You must have 50% marks in aggregate at 10+2 level or equivalent with Mathematics as one of the subjects at 10+2 level. Or
OR
You have to pass 10th + 3 years Diploma (any stream) recognized by Central / State Governments with 50% aggregates marks.

top B.Arch colleges in India:

SCHOOL OF PLANNING & ARCHITECTURE

SIR J.J.COLLEGE OF ARCHITECTURE

BENGAL ENGINEERING COLLEGE

JADAVPUR UNIVERSITY

TVB SCHOOL OF HABITAT STUDIES

IIT,KHARAGPUR

IIT,ROORKEE

CENTRE FOR ENVIRONMENTAL PLANNING & TECHNOLOGY

RAI UNIVERSITY RAIPUR

Chandigarh College of Architecture, Chandigarh

CEPT University, Ahmadabad

School of Planning and Architecture (SPA), New Delhi

Manipal Institute of Technology, Karnataka

G.I.T.A.M School of Architecture, Andhra Pradesh

M.N.R College of Architecture, Andhra Pradesh

S.A.R College of Architecture, Andhra Pradesh

Sri Venkateswara College of Architecture, Andhra Pradesh

Vaishnavi School of Architecture and Planning, Andhra Pradesh

Acharya School of Architecture, Karnataka

B.M.S. College of Engineering, Karnataka

Anna University, Tamil Nadu

Bharath University, Tamil Nadu

Hindustan University, Tamil Nadu

National Institute of Technology-NIT Calicut, Kerala

College of Engineering, Kerala