Release of salary & false allegations.

I am an employee of Delhi Government health department, I worked for full month but my salary payment was stopped by senior due to personal arbitrary reasons. He cited that during one of his inspection i was not present on my seat, I was out to have a glass of water at that time. My attendance is complete and I have examined more number of patients as required by the rule, in fact I am the doctor who examined most patients for the said month and record is there for the same.

How should i go about it, as this is clear harassment in spite of exceptional being on duty.