It is the only company in India authorised to produce indelible ink, which is used in elections to prevent people from voting multiple times.

[1] The manufacturing process is a closely guarded secret and is based on a chemical formula devised by the National Physical Laboratory of India.

It is usually applied on the finger nail of the voter and leaves an indelible mark which is not easy to erase.

[1] It has also started manufacturing marker pens containing this ink for easy usage and this has also been used in elections held in Afghanistan.

[5] The company also manufactures other products such as chemical-resistant paints, enamels, primers, distempers, sealing wax, postage stamp cancellation, and polishes.