It might well have been Imli (Tamarind) chutney, which fits very well with fried snacks like samosas, pakoras, etc.
The two sauces that are almost always brought to the table as a condiment to the meals at the Indian restaurants I go to are a tamarind sauce ( brown and liquid) and a mint/ cilantro chutney (green and thick/ pasty).
The two sauces that are almost always brought to the table as a condiment to the meals at the Indian restaurants I go to are a tamarind sauce ( brown and liquid) and a mint/ cilantro chutney (green and thick/ pasty).