By Charlie Conchie City private equity house Pollen Street said it was on track to raise a €1bn (£860m) deal war chest today as it bumped up its assets under management in the first three months of the year. In a trading update today, the London-based investor said its total assets under management had stepped up to £4.4bn in the three months to March, up from £4.2bn at the start of the year. The firm has been raising cash from investors for its private equity and private credit funds in recent months and said today that fundraising was “progressing well across both strategies.” “We remain con…