IGNOU - Indira Gandhi National Open University

Last date for admission in M.Com at IGNOU was 17th August, 2016 and 31st August, 2016 with late fee of Rs 300. You are eligible and may apply for admission in M.Com now. You can submit B.Com mark-sheets once the results are announced.

Dr. B. R. Ambedkar Open University, Hyderabad as there is no requirement of assignments and also have simple subjects. Hurry up, you might have to submit late fee for admission.

DU is better university for doing B.Com by distance learning in comparison to IGNOU because of brand image of DU.

IGNOU is a better option. The courses are recognized by UGC.

No, IGNOU do not offer M.Tech course, for the details of master courses offered by IGNOU, check link below:
http://www.ignou.ac.in/ignou/studentzone/programmes/2

Majority of universities do not allow simultaneous study in two degree courses. You may look at rules & regulations of universities in which you are planning to do both the degrees. Beware that in order to do two degrees simultaneously, you may spoil learning and grades in both the degrees!