The Ministry of Rural Development has provided for concurrent evaluation and impact studies of the IRDP as and aid to administer the programme effectively.The state governments have been advised to undertake evaluation studies from time to time to ascertain the impact of the programme and to measure the extent to which the beneficiaries have directly derived additional income and employment from the investments made under the programme.The state governments may make use of their own evaluation machinery, wherever practisable , to undertake concurrent evaluation and impact studies , or they may entrust this work to selected academic/research institutions of standing and repute in this field.