Rajasthani Ker, Tiny Succulent Berries That Grow in The Warm Dry Regions of Rajasthan, is Used in Many Interesting Ways In That Region. Ker Ka Achaar Is One Such Delicious Preparation of Ker Pickled in Mustard Oil Spiced Up with A Variety of Seeds, So Just a Sniff of It Will Make You Hungry. It’s Soft Skin and Pulp Simply Melts in Your Mouth, Leaving A Tangy Sour Taste on Your Tongue, And A Craving to Have More of It in Your Throat.