You can do B.Tech/Diploma from through associated Membership examination by various societies. Like automobile society is conducting Technician membership exam in automobile engineering. The automobile society India. www.automobilesociety.ac.in
Whether the said university is approved by IGNOU or not Bhartiya Siksha Parishad
yes
M.Tech is not offered from IGNOU. IGNOU offer Vertically Integrated Engineering Programme(VIEP). This programme allows students who have passed the 10th Standard, 12th Standard Examinations and also those who already hold ITI certificates, Diploma, B.Sc., BCS, BCA or equivalent, to pursue a higher qualification starting from Advanced Certificate, Diploma and going up to Bachelor's Degree in Technology.
IGNOU initiated Vertically Integrated Engineering Programme(VIEP) to create a system of education that allows students a greater choice in education. This Programme allow students who have passed the 10th Standard, 12th Standard Examinations and also those who already hold ITI certificates, Diploma, B.Sc., BCS, BCA or equivalent, to pursue a higher qualification starting from Advanced Certificate, Diploma and going up to Bachelor's Degree in Technology. VIEP initiated by IGNOU allows students to enter the stream of technical education upon passing the 10th standard examination. In this programme a student can obtain a diploma in Engineering or a Degree in Engineering or an Advanced Certificate in Engineering from IGNOU and then exit the Programme to join an industry for employment with the option of re-entry at a later point in time for perusing a higher certification/ degree.