*Yen Slips To 6-day Low Of 143.97 Against Pound

*U.K. February Mortgage Lenders' Net Mortgage Lending At GBP 1.6 Billion Vs. GBP 1.5 Billion In January

*U.K. Banks' Net Lending To Businesses At -GBP 0.8 Billion Vs. -GBP 6.9 Billion In January

U.K. Public Sector Net Borrowing Rises In March

U.K. Retail Sales Incl. Auto Fuel Rise Less Than Expected