India Finance Minister Arun Jaitley with Minister of State for Finance, Nirmala Sitharaman and officials while giving final touches to the Annual Budget 2014-15.

Indian Prime Minister Narendra Modi's new government on Thursday unveiled a first budget of structural reforms aimed at reviving growth, winning praise from investors despite a lack of clarity over how he would cap the big fiscal deficit.

Expectations had been high that the government would utilise India's strongest election mandate in 30 years to take radical steps comparable to the 1991 market reforms that unleashed an era of high economic growth.