Dear Amar, the entire information furnished by you regarding the proposed move of transferring a particular process/operation with the existing employees in the organization after their resignation, with the assurance of fresh appointment in another organization, should most probably be communicated by word of mouth and not by any written communication. If so, certainly, this is a sinister motive of your present organization to circumvent the provisions of section 25-FF of the Industrial Disputes Act, 1947, pertaining to compensation to workmen in case of transfer of undertakings.
The resignation from the present organization and fresh appointment in the other one, if any, based on the strength of such oral assurance, would nullify the resignees' claim for continuity of service before such resignation and any service benefit like gratuity accruing on the basis of a minimum qualifying period of service.
Therefore, do not accept the proposal and resign from your job. Unless you are formally transferred to the other organization with continuity of service and the latter's acceptance, your service in the transferred organization would be considered fresh only. When your service falls short of 4 years and 240 days in the fifth year on the very date of your resignation, you are not eligible to claim statutory gratuity from either of the organizations. It is better that all such employees jointly make a complaint to the local Deputy Labor Commissioner.