In 1971,India not only dismembered its enemy but also overran close to 5600 square miles of teritory in then West Pakistan mainly in the Pakistani kashmir,punjab,sindh,shakargarh,jarpal and Sialkot sector and sieged the Sialkot army base.Infact according to the official history(and also rtd Maj.Agha Humayun Amin of Pak army),the invading I corps had planned to capture the Sialkot army base through a four pronged assault and was waiting for the nearby XI corps and 1st Panzer division for support but just on the previous day of the planed assault,the siege fire came in effect and the whole plan went down the drain.The troops were said to be seemingly disapointed.Later on Shimla agreement,India gave back all the captured teritory.
So please feel free to research a bit befor pouring your BS here.You can read the official history of 1971 war.Don't worry,it's not a biased article.The article praised certain Pakistani officers and also criticizes Indians for their fault.
REGARDS.