Net direct tax collections grew 14.64% to Rs 5.21 lakh crore in the current fiscal till June 17, aided by healthy growth in both corporate and non-corporate tax receipts, official data showed on Thursday.Net corporate tax collection rose 22.47% to Rs 2.08 lakh crore, while taxes from non-corporates, including individuals, HUFs, firms and other entities, increased 8.40% to Rs 2.94 lakh crore.Securities Transaction Tax (STT) collection stood at Rs 18,856 crore during the period, compared with Rs 13,013 crore in the corresponding period of the previous fiscal.Tax refunds issued during the period rose 1.19% to Rs 89,026 crore.Gross direct tax collections increased 12.46% to Rs 6.10 lakh crore till June 17, against Rs 5.42 lakh crore a year ago. Gross corporate tax collections stood at Rs 2.77 lakh crore, while non-corporate tax receipts were Rs 3.15 lakh crore.Advance tax collections rose 15.3% year-on-year to Rs 1.78 lakh crore. Corporate advance tax payments increased 16.01% to Rs 1.41 lakh crore, while non-corporate advance tax collections grew 12.73% to Rs 37,620 crore.The strong growth in advance tax receipts is seen as an early indicator of healthy income and profitability trends among taxpayers in the current financial year.