Blend all the ingredients except pineapple jelly and refrigerate for 20 mins.
Meanwhile if u don't get ready-made pineapple jelly,prepare one by adding the ready-made jelly maker to boiling water and it will take 5 mins to do that and put it in freezer,it will take 12 mins to settle.
Take 4 tall glasses ,put the pineapple jelly first, then pour pineapple lassi over it.
Its truly a cool refreshing delight for a hot summer.Enjoy!!!.