"The negative outlook suggests that there is a more than likely chance of Fitch revising rating downwards from 'BBB-' to 'BB+' in the next 12 to 24 months.
"When we say more than likely chance, this essentially translates into more than 50 per cent chance," Art Woo, Director in Fitch's APAC Sovereigns team, told PTI.
The comments were made in reply to emailed queries on the possibility of Fitch revising India's credit rating.
Fitch had lowered India's credit outlook to negative from stable on June 15, 2012.
The downgrade of credit outlook indicated that the country's medium-to long-term growth potential could gradually deteriorate if further structural reforms are not hastened to create a more positive operational environment for business and private investments.
Downgrading sovereign rating could impact investor sentiments and could lead to higher borrowing costs.
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"The Indian economy is facing a challenging environment as the macroeconomic picture has turned unfavourable as growth has experienced a sharp slowdown, while inflation pressures have remained persistent," Woo said.
Stating that investment climate in India appears to be facing structural challenges, the rating agency observed the government's recent decision to review tax proposals such as GAAR does not come as "too surprising". MORE