A hair colouring composition/ kit in the form of cream/ lotion and the like involving alkalizers for faster and effective colouring of hair that is substantially free of any irritating odour and further economises on time and cost and favours faster colouring and/ or improved colour retention. The said hair colouring composition/ kit of the invention is adapted for use in cosmetically acceptable forms such as creams/ lotions and the like that additionally includes other hair benefiting agents