Change of name of a private limited company

please start your studies-see-study-material-company law

Please see by this link

https://siadipp.nic.in/policy/changes/press4_99.htm

i need a help i am changing the object clause and the name of the company. i have already e filied FORM 1A for availability of name.whether this form is also to be filied physically with the ROC department,kindly guide for the same,and also want to know the further steps after availability of name to change name and object clause.