Ballarpur Industries Limited, also known as BILT or B.I.L.T. Is a Thapar group company.

The main flagship company of BILT is its paper divisions, of which the Ballarpur, based mill gives the organisation its name. The current chairman of the company is Gautam Thapar, prior to him his uncle L. M. Thapar was the chairman.

The company is a leader in the Indian paper market. Its other initiative is BILT Tree Tech, which is a backward integration company, that looks into creating high yield saplings of trees that can be used for raw material. it has both captive farms for this as well as tie ups with farmers.