Hello Aspirant,

You can definitely take up admission at IGNOU for B.Arch if you meet the eligibilty criteria given there. Go to the nearest IGNOU centre or apply online when the registerations start with all the required documents. You will also need a qualifying valid score in NATA to apply for the program.

Check this - http://www.ignou.ac.in/ignou/aboutignou/school/soet/programmes/detail/575/1

Good luck!