Many countries are mitigating the shortfall of electricity through the renewable energy system. Research is still continued in this direction to find other alternatives or reduce the consumption of electricity. This paper presents the status of the renewable energy system in the Indian subcontinent which includes India, Bangladesh, Pakistan, Sri Lanka, Nepal, Bhutan, and the Maldives. This paper presents, a comparative assessment of the capacity of all the renewable energy systems is done. The effects of renewable energy on the economic growth, foreign direct investment, domestic investment, electricity sustainability, and environmental sustainability of the Indian subcontinent is presented along with SWOT analysis. According to the SWOT analysis it is find out, the main threats in different countries are such as inefficiency in risk analysis technology and mitigation mechanism in India, Inadequate infrastructure, Terrorism, Unbalance political issues in Pakistan, Sri Lanka and Bangladesh and opportunity to increase the electricity generation through the wind, geothermal and ocean energy in the Nepal, Bhutan and Maldives.