How a quick cleaning of windows can improve lighting in your house

NOTE: While doing this work, please wear protective hand gloves and mask to avoid inhaling the dust 

STEP 1: Remove all stains using thinner (Turpentine Oil) . Use any appropriate thin metallic sheet to remove extra material deposits like paints or thick layer of dust

STEP 2: Clean it with dry cloth

STEP 3: Apply any glass cleaning liquid like Colin spray etc and Wipe of with another dry cloth

 STEP 4 Finally Cleanup with Plain water wipe it off with dry cloth