Sweet Chutney Recipe (Dates Tamarind Chaat Chutney) , Green Chutney for Chat

Dates Tamarind Chutney(Sweet Chutney) and Green Chutney are the 2 most important chutneys for most of the chaats like dahi puri,dahi papdi chaat, bhel puri, dahi vada etc etc. Does anyone say no to chats?! I am not a crazy fan of chats but then few items like dahi poori ..