Service to the Almighty Sriman Narayana and his divine Consort (Thayar) by many ways (Described in "AIMS") and also to the Bhagavathas (Disciples / Sishyas) by way of Sambhavanas etc (See AIMS) in this PRAGRITHI.
Service to Bhagvan and his consort at Sri Vaikunta (Eternal world) in company with nityas and mukthas with no time limit.
The former gives pleasure to the Almighty. With His grace, our soul will force us to reach Acharyas to do "Prapaththi". After prapaththi, till the life-time, Kainkaryams (some of which are enumerated in AIMS) have to be done not only to Bhagwan but also to Bhagavathas which will please both of them.
After the liberation of soul from earthly enjoyment, the latter service will come and Jeevathma does all Kainkaryams to Bhagwan without any chance of rebirth.