During this period you might be on probation period. Ideally notice period during probation should be NIL. You may refer to standing orders (certified/Model) applicable to the establishment and extended to your designation.
If no appointment letter has been issued to then no Notice period should apply.
Earned wages have to be paid by usual pay day.
Employee can approach:
Trade Unions, O/o Labor Commissioner, Inspector under Payment of Wages Act (Applicable to all employees drawing wages up to Rs18000/pm as per def. of wages as in the Act), Inspector under Shops and Commercial Establishments Act of your state……………civil court.
There are threads to suggest that employee ca approach employer as Creditor treating the unpaid wages as Debt on employer and to invoke criminal complaints u/s 406,420……………
Approach a competent and experienced labor consultant/service lawyer with copies of all of your docs and discuss in person and proceed under expert advice of your lawyer.