jis ko = to whom
jis se = from whom
jis ko chaval pasand hai = the person who likes rice
jis ko pani chahiye = the person who wants water
jis ki behen ga-ti hai = the person whose sister sings
jis ke do kutte hai = the person who has two dogs
jis ne ye dosa bana-ya = the person who made a dosa
jis ne ye roTi kha-yi = the person who ate roTi
jis ke saath Amit kaam kar-ta hai = the person with whom Amit works
jis ke liye Rohit dosa bana-ta hai = the person for whom Rohit makes a dosa