Try to convey your problem to concerned HR by email, subsequently if they fail to.pay your pending salary, you can send a demand legal notice demanding your pending salary.
High court advocate
Student at Faculty of Law Banasthali Vidyapith Rajasthan.
You can enquire about the issue with your company first. then as per the situation, you shall be able to approach the labor court of the concerned jurisdiction. You can also file a complaint in this regard if things go out of hand. Also, you can be entitled to receive interest over the salary if it is delayed.
For this you can also refer : https://www.lawyersclubindia.com/articles/employee-is-entitled-to-interest-if-payment-of-salary-is-delayed--8659.asp