If you have already attempted many interviews to get job in banglore which suits your interest/qualification/passion, and if you are failed in the same, then you can go for Tech support which involves (which utilizes) your networking knowledge for time being if you want financial assistance urgently for your basic expenses. Else if you have some money and if you can use that for some time then it is better to try for companies which work on C programming and networking knowledge whatever you have.......... But before doing all these things pls ask yourself on what actually you are passionate about. Dont go to others to ask this...Because as you are a fresher this is the GREAT time to decide your entire carrier,,.......ALL THE BEST