Thanks for stopping by my blog. rye is nothing but black mustard seeds. You can take a look at the Terminology section above in my blog to see the Hindi to English translations of unfamiliar words. urad dal could be skipped in case you cannot find it but it is usually found only in Indian stores and the same goes for Kari leaves. These definitely add an extra layer of aroma and flavor but you can certainly make sundal w/o these as well as long as the basic ingredients such as black eyed beans, lime, coconut, mango etc is available. I am sure New Jersey has a huge Indian population and finding an Indian store should not be difficult but I am not familiar with the shore. I hope this helps.