Amidst a slowdown in the economy,the net direct tax collection has risen by 13.7 per cent to Rs 4.12 lakh crore till December 20 of current fiscal. The government has fixed direct tax collection target of over Rs 6.68 lakh crore for 2013-14,envisaging a growth of 19 per cent,as against Rs 5.65 lakh crore in 2012-13. The collections had totalled Rs 3.63 lakh crore during the same period of 2012-13,the finance ministry said in a statement on Saturday. The advance tax mop-up has risen by 8.8 per cent to Rs 2,02,626 crore for the December quarter,it said.