Place maida, sugar, butter, khoya, vanilla and baking powder in a bowl and beat well with a beater, till smooth. Add the eggs and beat it again. The batter should have dropping and smooth consistency. If not, add a little milk and beat again.
Pour into muffin moulds/cake pan and bake in a pre-heated oven (180 C-360 F) 20-25 minutes. Insert a skewer or knife in the cake, if it comes out clean your cake is ready.