The third quarter is traditionally weaker for IT firms as business is impacted by low volume growth amid Christmas and New Year holidays and furloughs in the US and Europe.
The US and Europe are key markets for the over USD 140 billion Indian outsourcing sector.
"Historically, for the industry the second half growth has been relatively lower compared with the first half... Q3 you typically have lower working days, furloughs... For us, Q4 has also been challenging in the last couple of years," he said.
"Apart from the traditional furloughs in industries like manufacturing, which we have already factored in, this time we are also anticipating furloughs impact to be much larger in couple of other industries as well which historically we would not have seen in the past and there are are certain client specific things as well," he said.
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So, based on the visibility, the second half would be challenging, he added.
The company has maintained its guidance in constant currency terms at 10-12 per cent growth, but the dollar revenue growth forecast has come down to 6.4-8.4 per cent from the 7.2 to 9.2 per cent.
Rao said banks continue to face cost pressure and so, Infosys anticipates some challenges especially in the insurance sub-segment of banking, financial services and insurance (BFSI) vertical.
"Retail has done well this quarter but we expect retail to be volatile... Telecom continues to be a bit of struggle as well. Most telecom companies are struggling for topline as well as bottomline and are looking for ways to grow revenues," he said.
Manufacturing contributed 23.8 per cent to the quarter's revenues, while retail & CPG and telecom accounted for 14.9 per cent and 7.9 per cent, respectively.
However, Rao expects the initiatives undertaken to increase productivity and focus on areas like automation will have a positive impact.
"Vishal talked about many initiatives. Our endeavour is to make sure that we try to minimise the impact (of furloughs) and we are hopeful that many of the initiatives that we are doing will probably give us the momentum getting into Q4," he said.