Wash the area to be decorated with a good soap (one with a mud base) and water.
Mehendi should be kept for 2-3 hours till it is fully dry.
Scrape off the dry Mehendi and do not wash it with water for atleast 24 hours, to ensure maximum colour.
Apply a mixture of lemon and sugar, atleast twice, to the dry area.
After the tattoos are dried completely get some steam passing through cloves over the gas and apply Vicks for a good darkened color.
When the Mehendi starts fading and appears patchy, it can be removed by applying cosmetic body bleach.
