Shares of UPL Ltd surged over 5% to a fresh 52-week high in the afternoon session on Monday after global brokerage Investec upgraded its rating on the stock to 'buy' from the earlier 'sell' call.

The Chatterjee Group (TCG) is in talks with local and global companies to partner with its majority-owned petrochemical firm Haldia Petrochemicals Ltd (HPL) to build a more than $10 billion ...