Hello Friend,
If you are currently serving in Indian AirForce Services, it should be feel proud of it that you in Defence service.
Any how now we will come to your family problems which you have narrated above.
1) By leaving current job, your problems will not solve 10% but it will become worst from here. After leaving your job you will become unemployed. Youwill have no work, no work means no income and rest of your family members does not work at all etc etc. So re-think on it and is it the same reasons of leaving the job?
2) I think there is one clause in your service, if you don't take promotions in first fifteen years, than after fifteen years you will get retirement automatically applying it. As of now you have just completed 10 years 5 years remaining check with your agreement policy in the Airforce Office.
3) Consult clerical branch of your unit. They are bound to have copies of all relevant orders/AFO/AFI. Or else you will get copies of orders from AFRO Subroto Park Delhi or Air HQ/DOP.
It is absolutely unfair and unprofessional for an Airman to cause this type of query, on open public forum, instead of checking with your deptt.
There is no point of law involved.