A STORAGE STABLE GRANULAR FORMULATION COMPRISING PYRAZOSULFURON ETHYL, PRETILACHLOR AND SODIUM LIGNOSULFONATE WHEREIN THE SODIUM LIGNOSULFONATE IS SUBSTANTIALLY FREE OF A REDUCING SUGAR AND A PROCESS FOR THE PREPARATION THEREOF. ALSO DESCRIBED IS A GRANULAR FORMULATION COMPRISING SEPARATED GRANULES OF PYRAZOSULFURON ETHYL AND PRETILACHLOR ADMIXED IN A PREDETERMINED RATIO AND ANOTHER PROCESS FOR THE PREPARATION THEREOF.