Suzlon said consolidated net profit in the April-June quarter rose to 393.8 billion rupees ($9 million), compared to 200 million rupees reported a year ago.
The company said its June quarter net profit was hurt by a 1.5 billion rupee forex loss.
Producers of renewable energy equipment such as Suzlon are riding a boom as high oil prices and climate change concerns prompt countries to crackdown on greenhouse emissions.
It said it had total orders worth 164.9 billion rupees.
Suzlon shares fell 18.1 per cent in the quarter, compared to a 14 per cent drop in the benchmark index.