For the concise option, at the 1st of the week and on the 49th day, the following will be done for the deceased by a group of monks:
 
*At the end of the 1st week: Vajrasattva Puja and 7 days butter lamp offering
 
*The 49th day, the end of the 7th week: Amitabha puja, Sur Offering and 7 days butter lamp offering