I appreciate you for the effort and endeavor to record by voice/emails.
Employee should always learn to defend his/her interest.
1. The issue of False Claim of Advance has already been discussed in detail at another thread initiated by you at:
https://www.lawyersclubindia.com/forum/details.asp?mod_id=119711&offset=1
The tactics of the company amounts to fraud, falsification of record.
The employer has to maintain various forms/registers as prescribed in Shops and Commercial Establishments Rules framed under Shops and Commercial Establishments Act.
If your company's Redg. office/Corporate office was located at Noida ((UP) and salary was processed from UP then you may go thru Uttar Pradesh Shops and Commercial Establishments Act/Uttar Pradesh Shops and Commercial Establishments Rules .......................also known as:
U.P. Dookan aur Vanijya Adhishthan Adhiniyam, 1962
U.P. Dookan aur Vanijya Adhishthan Niyamavali, 1963
https://labour.up.nic.in/labourcommissioner/dookan62.htm
and obtain the copies of registers/forms prescribed pertaining to payment of wages, advances etc even if thru RTI.
The HR and employer can not claim that it was unaware for 4-5 months.
Moreover you have voice recordings and email conversations to substantiate.
2. You can pursue the complaint with Labor Officials thru RTI as well.
3. It shall be good if you can involve Employee’s unions of your sector affiliated with trade unions /Trade Unions. Trade Unions in Maharashtra have traditionally been strong.