India's gross domestic product (GDP) grew at 13.5 percent in the quarter from April to June, down from 20.1 percent in the same quarter last year, according to government data.
The construction and service sectors recorded impressive growth in the first quarter, indicating a rebound in economic activities after the pandemic-induced lockdown.
Private final consumption expenditure grew by 59 percent in the quarter from April to June, a sign of increasing interest of the private sector in capital investment.
Exports also experienced lower growth than both the preceding quarter and the same quarter a year earlier.
GDP is the sum of the gross value added at basic prices, plus all taxes on products, minus all subsidies.
GDP growth is the highest in the past four quarters but lower than the Reserve Bank of India's projection of 16.2 percent.
According to analysts, the double-digit growth rate is registered because of the base effect.
Earlier on Tuesday, the chairman of the prime minister's economic advisory council, Bibek Debroy, said India can become an upper-middle-income country by 2047 if it achieves a sustained growth rate of 7 to 7.5 percent for the next 25 years.