Indian Law presumes that whosoever works in Managerial cadre are part and parcel of Promoters, owners and management of the firm/company and so they cannot have any issues among themselves. How funny? Employee working in managerial cadre wants to move courts? She will never get jobs elsewhere in India in future if she does so. All managements in the country will remember her name forever.
The answer depends on nature of relief sought. Depending on nature of relief sought we see which law is applicable to get that relief and that law lays down rules about the forum the victim has to approach. With the given information it can't be said whether she can approach Labour commissioner or not.