Hello aspirant

Green Card quota was put in effect by the Government of Odisha in the year 1983.Basically under Green Card 5% of seats are reserved in any college that participates in OJEE(both SGFTI and Private).

The ES or Ex Servicemen quota(in this context) means wards of Ex-Servicemen.Roughly an "ex-serviceman" means a person, who has served in any rank (whether as a com- batant or as non-combatant), in the Armed Forces of the Union, including the. Armed Forces of the former Indian States, but excluding the Assam Rifles. Defence. Security Corps, General Reserve Engineering Force.For the detailed definition you can go through the link below-

https://dopt.gov.in/sites/default/files/ch-23.pdf

Under OJEE 3% of seats are reserved under the ES quota.

You can go through the link below and check all the reservations under OJEE-

https://engineering.careers360.com/articles/ojee-reservation-criteria

Hope this will solve your problem

Regards