Raw Mango Chilli Chutney (Mango Chilli Sandwich Spread)

Raw Mango, with salt and chilli powder brings back childhood school memories.
The mango season has just begun, specifically RAW MANGOES.
This spread/chutney I learnt from my childhood friend's mom, who used to live next door.
She would make this chutney and spread it along with butter on sandwiches.
I still cannot forget the taste of the yummy sandwiches she would make. 
This dish has 2 variants :
Variant 1.  A spread for Sandwiches.
Variant 2. the traditional Indian chutney eaten with rice, rotis, dosa.