Dear Srinivasa Ji, since the recession period is over, the employer may be persuaded to consider your friend's actual services from the date of joining. Otherwise, short of 5 years, your friend would not be eligible for gratuity. If the employer is adamant, your friend may prove that he was in employment from 2006 and seek the intervention of the Labour Commissioner (State) of the area where the firm is located, who is a competent authority to decide disputes in gratuity cases. Before filing an appeal with the concerned Labour Commissioner (State), your friend has to claim gratuity in writing, stating the full length of service from 2006. After 30 days of the claim, if it is not settled by the employer, the employee can lodge a complaint with the Labour Commissioner (State) of the area. When successful, please do post your story on this site for the guidance of others concerned.
Thanks & regards,