Grease an aluminium tray. Melt butter in a non-stick pan on medium heat.
Add chocolate and melt, stirring continuously.
Add condensed milk and mix well. Add powdered sugar and mix.
Add khoya and cook, stirring continuously, till the mixture thickens and begins to leave the sides of the pan.
Add crushed dried fruits and mix well. Pour into the prepared tray and set aside to cool.
Chill in a refrigerator. Cut into squares and serve.