new delhi the countrys biggest private sector lender icici bank on wednesday said it will unlock value in four of its subsidiaries and the process could begin in six months with its brokerage arm icici securitiesicici bank md and ceo kv kamath said i would think that sixmonth period is a fair expectation we have not yet taken the board approval he was replying to a query on whether the first of the subsidiaries would hit the market in next three to six months noting that icici securities could be the first of the lot to hit the market he said it could be soon followed by two insurance arms icici prudential and icici lombard and the banks housing finance arm kamath said the listing of insurance subsidiaries would be subject to the previously proposed holding company for these businesses not coming through the proposal for this is awaiting rbi clearance kamath said there could be two more cases for unlocking value mf arm and pe business icici ventures but they could take some time