Finance Minister Arun Jaitley today said, the government will go ahead with its disinvestment programme and a lot of activity is expected on that front. Speaking on the sidelines of World Economic Forum summit in Davos, Mr Jaitley hinted at complete privatization of some loss-making PSUs at a later stage. He also said that the government's tax revenue collections have been good, although refunds for past periods are making an impact. On whether the government would look at privatization as well, Mr Jaitley said it can be done in case of companies that need to be privatized and the government cannot keep funding their losses with the taxpayers' money. The Finance minister said, manufacturing has been a challenging area but expressed hope that it will see an upward move at least in the later part of the year.