B.Sc

If you want to compare Hadoop with SAP HANA then my answer will be both as they have a very good exposure but still companies prefer to have Hadoop specialist.
From technology understanding, you may refer to the following link
http://scn.sap.com/community/hana-in-memory/blog/2014/02/01/hana-vs-hadoop-showdown

MBA and M.Sc are two different streams. MBA belongs to the management field, and M.Sc belongs to the technical field. If you want to be in technical space, opt for M.Sc and not MBA, and vice versa.

Mentioned below are all the evening colleges in Bangalore. All of these are having both science and arts courses. Kindly contact them to know whether they are offering B.Sc or not.
The colleges include:
R V Correspondence College, Frazer Town
Florence Composite Junior College, Frazer Town
Surana College, Basavanagudi
Vijaya College, Basavanagudi
Central College of Bangalore, Bangalore GPO.

Starting CTC of B.Sc IT graduates is around Rs 2.5 Lakhs.

Hi Puneet,
Rather then feeling helpless, just do a little exercise by writing about your strengths and skills. If you interested in research or education more, M.Sc is the best option. If you are more of a people's person, have good communication and negotiation skills, go for MBA as it's all about management. Furthermore, you may go through the course structure of each course and see what you can relate better as you have to study it for next two years.
In case, you are still confused, talk to a career counselor.
Hope this helps.

As a Diploma holder, lateral entry into B.Tech is possible for you and after doing course in civil, the best is B.Tech in civil.