if you were in my shoes, what would you do?

Don't you have some sort of advocate for workers there? Here (USA), each state has an office where you can go to make complaints against employers who won't pay or who break laws like not allowing breaks during a long day. If it were me, I'd be looking for another job. Why keep working there if you're not being paid? After a half a year, you may not ever get paid anyway. Why lose more? I would not stay and I would tell everyone why.

OMG how could you just go on like this for six months??? You should have realized the trick long ago… I mean you are really paying for your shortsightedness…there’s nothing you can do really, you either quit and forfeit your salary or continue like this in the hope (bleak) that you might actually get paid some day. However, how is the office set-up? Is it a small place with very few employees? If so, you might just take over some friends and rough up the bast*ard and little, I mean try and scare him into paying you something at least. Or if you have any employment papers with you, you can contact the labour department in your city or if the media in your area is strong and supporting of the common people, you can approach them to expose the fraud.

I am sorry for your situation. It seems like there was not contract in place when you accepted this job. However if you do the job you need to get paid. I am not sure where you are but everywhere should have laws to protect you. I suggest report this boss. He need to pay you. You will get what is yours and probably more. I just cannot understand how he choose to pay some and not others. Good Luck.

OMG thats awful. nrab what have you been doing all these months? Cant you see it is plain exploitation. Maybe this is what you would want me to tell you but I can understand that there are many situations which are not in our control and we are forced to take upon such offers. Your case is saddening though coz its been already about 5 to 6 months and you havent been paid. I think you should talk to the seniors directly on this point. There is nothing much that can be done. I would not suggest you to leave the job coz, it would deprive you of all the earnings. You can talk this out with the Bosses of the organization, If they have given you any letter of Appointment or Any Terms and Conditions (offer letter) it would be worth showing and discussing with a lawyer/solicitor.