Dear Sami

As you have stated that you have got 66% in HSC and got 48% in pcm and you are thinking of taking direct admission in 2nd year B.tech. I would say that yes it is a viable option as with your pcm percentage it would be difficult for you to get any good btech college.  I would suggest you take admission in a good diploma course and get good result.  Then you can go for direct admission in B.tech 2nd year. This entry is called Lateral entry but you must score good in your diploma course to get a good college.  I hope it helped