Hundreds of new Labor party members provided no contact details when they signed up for the ALP, a damning investigation into branch stacking in Bill Shorten's home state has found.

As reported by Fairfax Media earlier this month, hundreds of Victorian memberships are being scrutinised by former Labor MPs Carlo Carli and Mike Symon after allegations of branch stacking, centred on the Indian community and spread across three federal electorates, surfaced.

One of the men accused of branch stacking, Jasvinder Sidhu, and Premier Daniel Andrews. Credit:VISPENN Photography

A leaked copy of the interim report from the pair highlights serious concerns that many of the new members did not share the party's values and that they were being signed up to build a base within the ALP to use as a vehicle to public office.

"This investigation is concerned that many of these members may have little commitment to the ALP," the report says.