hahaha.. shaling, i oso wondering your same question at my time.. but by right traditional, YES, u have to serve ur parents 1st b4 u step out of ur hse cos u will returning niang jia in 3 days time.. but now, current modern singapore, no more 3 days back niang jia le, all in one shot.. so leh, ur hubby will fetch u, den serve in-law tea den back to niang jia for niang jia tea ceremony.. =D
No lah... mine oso not educated de.. u are using ur marriage cert to apply the PR, which is so called 'sponsor' by spouse.. so juz submit whatever documents nid by ICA, jiu okie le.. =D