Not Paying Salary More Then 7 Months

I have been working with a FMGC Firm For Last 1 year.
Starting 3 months he paid on time after that he did not paid till march in april he paid only 7500.
I keep asking him to clear my salaries but he keep excusing me ok I will pay next or next to next monthon.
Till date he did not paid my balance salary and I did policy complaint near to my area.
Please advice what to do?

Hi Mr. Yaseen,
I understand your concern towards your salary. You can ask your employer to give in writing the reason for non payment of salary and you submit a letter stating your concern to your employer and take the acknowledgement in a copy. If he doesnt respond then you can appeal in your concerned Labour Office.
Regards,
K. AKash

When i asked him when you clear my salary he replied me please see the below,
provide the sales data been performed by you over a period been indicated below. As per our business data there are no sales in domestic/export registered under your name.
We shall remit you payment provided satisfactory sales graph received from you. 
[B]You should have used the office infrastructure to perform your job and increase the sales of company. This is not acceptable behaviour of a responsible employee. 
Please advice what to do next?

Dear Friend,
It seems you are working for an unprofessional company/employer. I doubt, whether company has given you Appointment letter & salary slip too. If you have provided with it, you can escalate the matter to magistrate court filling a legal suit. (I would have suggested to lodge a grievance with HR dept in your company, but needless to say they seems inactive)

Dear expert,
He is working in some Pvt ltd company too. Yes I have offer letter through email, but there is no clause in offer letter regarding any target.
HR also left that company.