The direct tax collections are up 15.7% for the April-November period from corresponding period a year ago, data released by the government on Monday showed.Collections added to Rs 6.75 lakh crore while refunds amounting to Rs 1.23 lakh crore have been issued during April-November, which is 20.8% higher than refunds issued during the same period in the preceding year.Net collections, after adjusting for refunds, are up 14.7% to Rs 5.51 lakh crore, representing 48% of the to ..