[Sri Vaishnava] Samasrayanam (Pancha Samskaram) do's and dont's?

Namaste,

I am interested in knowing what are the do's and dont's if one gets Pancha Samskara done for initiation into the Sri Vaishnava order. My mother told me that when you have it done, you cannot eat outside food as in restaurants. What other constraints does one have to observe? Is daily aradhana of family deity important (can't miss a day)?

Thanks,

JR