Is Working in ABAP with no Pay a Wise Career Decision?

i just joined an SAP implemented company. I was hired on training just for 5k per mnth, and I'm not on the payroll, or a contract.

I have completed my three month training and they have asked me to either leave the company or continue for two more months, not on payroll or contract. I have been developing ABAP applications. In the three months span and during my training have learned a lot about ABAP.

Now my dilemma is whether to stay with this company for another 3 months, knowing as a fresher it is almost impossible to get another job.

Do you think my training period will be counted as ABAP experience during my job search?
There is very little guarantee that this company will hire me on a contract basis.

So, should I leave and look for another job in some other domain, or should I switch to SAP ABAP?

5K per month is 60K per year. Not bad for entry level salary. I realize you don't have salary/long term/benefits. But it isn't bad in the short term. Why not stay with them while you look for another job?

I think the op here is talking in terms of Indian Rupee, which is low for abap developer. But for a fresher, learning abap and getting 5K is not a bad deal, considering how well your position would be to negotiate for more in future. A lot of my peers still searching for jobs don't even have this opportunity.
If I were there, I'd stick 3 more months and let my work do the talking before considering elsewhere - which is always an option.