Foreign Company branch as Un-incorportaed Entity

Does A Foreign company , - Starting a branch ofice as an UNINCORPORATED entity and permitted to do so by RBI under FEMA / FERA - , need to register with Registrar of Companies ?

Please see links and clarify , please :

https://www.sethassociates.com/incorporation_of_business_entities_in_india.php,

https://indianembassy.org/newsite/Doing_business_In_India/inc.asp,

https://www.excelict.com/India_%20entry_options.aspx