Larsen and Toubro’s (L&T) buyback proposal, which will be considered by the company’s board on August 23, could be of up to `12,300 crore based on its net worth, debt, cash and bank balances, and investments in securities, bonds and debentures. As on March 31, 2018, L&T’s net worth stood at ` 49,174.25 crore on a standalone basis, while its cash and bank balances, investments in securities, bonds and debentures stood at `17,425 crore on a consolidated basis, according to Bloomberg data.