Take cucumber ( kheera ), peel off the cucumber.
Grate the cucumber / kheera with grater.
Take the curd / dahi and beat the curd
Add grated cucumber / Kheera into beaten curd / dahi.
Add all the spices black salt, cumin powder, black pepper, red chilly powder, white salt.
Mix all the spices with curd.
Sprinkle Coriander leave in the raita.
Serve the raita with meal or paratha.