India has exploited 29 per cent of its hydropower potential against over 80 per cent and 70 per cent developed by the US and European Union respectively, Parliament was informed on Tuesday. As per the Reassessment Study carried out by the Central Electricity Authority (CEA) during 1978-1987, the assessed hydropower potential in the country is about 1,45,320 MW (for projects with capacity above 25 MW), Power Minister R K Singh said in a written reply to Rajya Sabha on Tuesday.