The Member who has introduced a Bill to the House is known as the Member in Charge of the Bill and has certain rights concerning the progress of the Bill. These rights include naming the days for its stages; withdrawing the Bill; moving adjournment for the Bill in committee and arranging the order of clauses in the Bill. For a Government Bill, any minister may exercise the rights of the Member in Charge.
Further information on this subject can be found from the following links.
About Parliament: Bill stages
Bills before Parliament