The Fesival is mostly celebrated in Goa some areas and Maharashtra.

According to the calender the festival is on August 10 Tuesday,

The people celebrate his festival with joy by taking non-veg and dining this is also know as Gatari,Haryali Amavasya in Gujarat,himana Amavasya vrata in Karantaka and Andhra Pradesh Ashada Amavasya is celebrated as Chukkala Amavasya.

I wish the people who celebrate this festival with joy and happy and enjoy the day.