All affected employees may join hands and stand as a witness to each other.
The employer might be aware that existing employees might be contemplating to separate and it might have also planned to square off the dues by adjusting notice pay.
The employer that doesn’t pay wages/benefits/payouts on time is unworthy to be employed with.
If employer has not been paying wages then notice period has lost its sanctity.
You may submit a gentle (final) representation (under proper acknowledgment) addressed to good offices of appointing authority,MD,Chairman mentioning that salary slips and salary of ................................has not been supplied till date despite many representations to (mention names,dates,minutes etc) and narrate the financial hardships (including inability to attend to office and that employee shall be at address.........................till wages are paid)........and demand to pay salary with slips within say next 3 days........
YOu may go thru following threads and you would know whom to approach:
https://www.lawyersclubindia.com/forum/Salary-delayed-119412.asp#.VS6LjdyUcqM
https://www.lawyersclubindia.com/forum/Helios-matheson-salary-issue-119386.asp#.VS6Lv9yUcqM