Regarding the Experience Certificate referred to by Mr. Yogesh, which is being insisted upon by the third company he is going to join, my comments are as follows:
When any standard company selects a candidate for a job after verification of all essential documents and then offers an appointment, the final requirement will be the relieving letter from the immediate previous company. This is because the third company selected and appointed him after due verification of all certificates. Regarding the experience certificate, it generally means the experience or knowledge or nature of work he has done in the company, which is already tested in the interview. The experience certificate shows that an individual has knowledge of specific areas, rather than the service certificate, which is essential to verify the period he worked.
Most companies now provide a combined certificate at the time of relieving, namely, a relieving cum service certificate, which will state the period of working, his designation, department, salary, and when he is relieved.
Most HR heads accept the relieving cum service certificate, which is essential to verify all factors of service and for employee background verification, rather than the experience certificate. In some companies, the concerned HODs of the department like Production, Mechanical, Electrical, EDP, etc., issue experience certificates to specify what knowledge he has gained and what he did in the department, whereas the HR department only issues relieving and service certificates as the experience of the concerned employee is better known to his HODs only.
I hope HR can accept the relieving letter produced by Mr. Yogesh since he has already been selected and appointed based on all other certificates and his performance during the interview done by the third company.
I hope the seniors will accept, and the third company will take him for duty since he is already aggrieved from both sides.
Good luck.
Regards.