In the latest annual ranking of Global Peace Index, India has been ranked at 143rd position out of 162 countries surveyed.
While India has slipped two positions, Iceland continues to top the list as the world's most peaceful place. However, Syria has replaced Afghanistan as the most violent place.
"The economic impact of containing and dealing with the consequences of India's levels of violence was estimated to cost the national economy USD 177 billion (about Rs 1.07 lakh crore) in 2013," the Sydney-based international think tank Institute for Economics and Peace said in its report adding that is equivalent to 3.6 per cent of India's GDP, or USD 145 per person.
Within South Asia, Bhutan has been ranked as the most peaceful country, followed by Nepal, Bangladesh and Sri Lanka. India is ranked fifth in the region -- better than Pakistan at sixth and Afghanistan at seventh.
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Globally, Pakistan is ranked 154th, while Afghanistan is at 161st position in this year's list.
"While Maoist movements are one of the biggest threats to India's internal security, sporadic conflict with its neighbours also threatens the country's external security," it said.
In concurrence, India is ranked number 4 out of 159 countries in the Global Terrorism Index.
"If India could improve its overall levels of peace, the dividend that would flow from this would substantially improve the country's economic growth rates. This can be achieved by a renewed government focus on building the underlying qualities that create and sustain peaceful societies such as low levels of corruption, well-functioning government and equitable distribution of resources," IEP founder and Executive Chairman Steve Killelea said.