"And also the expected economic reforms under the IMF (International Monetary Fund) standby agreement are going to be key factor."
Kudva is also chief executive of CRISIL, an Indian rating agency connected to S&P. She said Sri Lanka's growth this year would exceed 6.5 percent though official projections are near 8.0 percent.
Kudva said Sri Lanka had favourble demographics. Like India, the dependency ratio has fallen in recent years and unemployment was low at around 5.0 percent. This increased the capacity for domestic consumption.
"It clearly underpins the base for strong domestic consumption which will provide a boost for economic growth.
Fiscal Risk
Sri Lanka could get sustainable high growth if large scale private investment comes and government budgeting im