Contribution from DWS Limited - a leading Australian IT, business and management consulting firm that HCL Tech acquired recently - demand in areas of digital foundation projects and improving traction in ER&D segment should aid HCL Technologies' (HCL Tech's) March quarter performance. Leading brokerages expect the company to post a 6.2-6.5 per cent year-on-year (YoY) rise in revenue for the fourth quarter of the financial year 2020-21 (Q4FY21) when it announces its numbers on April 23. However, on account of a one-time bonus impact, the IT company's March quarter profit after tax (PAT) is expected to plummet between 26-31 per cent quarter-on-quarter (QoQ), analysts say. The figure, according to consensus estimates, could contract by 6.5-13 per cent on a yearly basis.