Hi, Yes there are chances you can get admission in BBA .. recently UPES-Dehradun a well known core sector university announced BBA admissions on the basis of 12th class pre boards exams.. if you score above 60% in 12th class pre boards then I would suggest you to contact UPES for registration.. they are going to conduct GDPI rounds on 11th of april.. you might still have a chance.. I would suggest you visit UPES website or their facebook page for further details.
Also there are colleges who take admission on the basis of entrances.

There are better colleges than techno, try that.
Best of luck!