Some questions will arise?
How long was probation as per appointment order?
Did you ever remind them about completion of probation and confirmation order, though it is the company responsibility to issue orders.
Is your National head co located?
In which case go and meet him personally.
Expenditure on litigation will be there.
You will have to take a balanced decision and go for litigation weighing all factors like time delay, option of paying 2 moths salary and leaving (though you may not be legally wrong)
Best will be to consult a local advocate and take his opinion.
Is your establishment registered under State shops and Establishment Act?
15th August 2018 From India, Pune
15th August 2018 From India, Meerut