Chg1 on mca portal

The purpose of filing a charge for company registration is to protect both the lender and the third party.

 Any third party that deals with the same property must be aware that the property is already under charge with a lender, and all parties must agree on the charge details before any transaction is completed.

CHG-1 is a crucial document that companies has to file in order to record any amendments to their charges.

The objective of filing eForm CHG-1 is to fulfill the legal duty placed on company registration by Company Laws mandating them to register information about charges created or modified within a specific time period.

So you may take a decision whether to opt for re-execution of the CHG form for the differntial value alone or you are required to file a form afresh for the entire value. 

you can consult your adutior or a consultant in the local and proceed as suggested