You may shift from asking, telling, saying mode to written mode.
If the establishment employed 10 persons at a point of time then you might be eligible for payment of Gratuity as well. There is no wage ceiling on Gratuity.
You may submit a representation to the good offices of Appointing Authority, MD, Chairman with a copy to Head-HR, local HR, and mention that the Notice of Determination of Gratuity has not been supplied to you, despite representations ( if any by phone, emails, in person, by letter etc and provide dates, time, phone numbers, Names of company officials, brief minutes of discussion etc) in office and FormI is attached, and demand acknowledgment and payment of Gratuity by Bank DD thru Redg. Post only. You may send the representation by redg. Post ( and obtain POD and certified copy of run sheet of postman from PO) and mention that a postage prepaid, self addressed envelope for sending the Redg. Post to you is attached.
The employer has to supply Notice of Determination of Gratuity and pay within 30 days of becoming eligible, even if NO application by employee is made.
(Basic+DA)/26*15* No. of years of service
Basic+DA is as per last drawn wages, so obtain last salary slip.
If in last year you have worked for more than 6months count it as 1Year.
In case of delay you are entitled for interest @10%pa.
If the good offices also do not provide any relief you may approach Controlling Authority of Gratuity.
If the need be quote following:
>>>
The Payment of Gratuity (Amendment) Act, 2009 (No.47 of 2009) [ 31st December, 2009]
The Payment of Gratuity (Amendment) Bill, 2009 was passed by both the Houses of Parliament has amended the definition of ‘employee’ contained in the Payment of Gratuity Act, 1972 for covering teachers in private institutions.
Refer to the current definition of Sec: 2(e) in Payment of Gratuity Act, 1972………….
It is applicable with retrospective effect from 1997.
There are many judgments delivered after the amendment.
>>> Payment of Gratuity Act, 1972
: 2(e), 2A, 4, 7, 8, 9
And
>>> Various decisions of court of law may be quoted.
There are many threads on similar queries that you may find relevant and you can download judgments also, e.g;
https://www.lawyersclubindia.com/forum/Is-the-private-school-teachers-applicable-for-gratuity--92288.asp#.Uylcy0eBmXU
https://www.lawyersclubindia.com/experts/gratuity-for-unaided-school-456686.asp#.Uyld4UeBmXU