Raita is an Indian side dish of yogurt  and it is made with various vegetables and leaves.  Here below I am writing the recipe of kathal/jackfruit raita.: 

1. 1.  Smear oil on hands and knife.This step is very necessary to tackle the problem of latex or sticky  and milky substance.

2.  Take the raw jack fruit which is available in the market for making sabzi etc. Peel it and cut into pieces.  While cutting,  peel its seeds too with knife.  If it is tender then no need to peel it.
3.  Now take this kathal into pressure cooker with 1/4 cup of water and little salt. I boiled it in hawkins pressure cooker.  When it comes on full pressure and first whistle comes, keep the flame on sim for1 minute.  Now remove from heat. We need completely cool boiled kathal. When it gets cooled, mash it with the back of big spoon.
4. After that beat the curd in a big bowl. Add kathal pulp, chopped mint leaves, sugar, mint leaves, green chili, and salt.  Mix properly.
If oil free is making then add cumin seeds poder and garam masala and mix.  Oil free kathal raita is ready.  Next steps written below is with little bit oil. That is completely optional