The country needs to prepare for "greater uncertainty" in terms of consumer as well as investor sentiments due to the second wave of coronavirus infections, and the government will respond with fiscal measures as and when required, Niti Aayog Vice Chairman Rajiv Kumar said today. While acknowledging that the present situation has become far more difficult than it was in the past due to rising coronavirus infections, Mr Kumar remained hopeful that the country's economy will grow 11 per cent in the current fiscal ending March 31, 2022.