sadly Pakistan has a weird law for alcohol banning - they even banned the poisonous one (methanol) - its really cheap and is used widely as an antistreak additive in glass cleaning. Being Pakistan where everyone thinks that all ols are the same - you cant buy this product.
methanol makes you go blind if you ingest it.
If you can find pure ethanol and mix it with water - it also is a very good cleaner - German cars use that at 20% vol. from the factory fill of the wash fluid.
Isopropyl alcohol (medical alcohol) is also used but quite costly and requires a great deal of it to mix in water for any temperature protection.
so for easy stuff - mix water and detergent at a ratio of 1:128. The alcohol is also used to kill any bacteria colonies in the warmed dark moist environment of the bottle. It is linked to legionairres disease as the water spray releases the bacteria which get sucked into the air vents of the wiper trays.