NEW DELHI: The Centre on Thursday announced the use of welfare fund to provide assistance and support to building and construction workers, who have been rendered jobless due to the lockdown on account of the coronavirus pandemic.The central government has collected around Rs 31,000 crore as welfare fund for building and other constructions workers. Finance minister Nirmala Sitharaman said states are being asked to utilise the fund to provide relief to these workers.There are around 3.5 crore registered workers in the fund.