Diya is very attractive and completely eco friendly as its made of cow dung and cow urine.
Cow dung diyas 3 in 1. (1)can be use as a regular diya (2) can be use to burn during hawan or as an alternative to cow dung cake (3) after diya gets burn, one can put fragrance resin onto diya and use it as a diffuser.
It can be burn in home as a cow dung burning believed sacred in our tradition.
As an alternative use it can be crushed and mix it with soil for better plant growth.
One can use it during festival or in normal days also for puja or hawan.