'10,00,00,000', '100,00,00,000', '1,000,00,00,000', '10,000,00,00,000'
'1,00,000,00,00,000', '10,00,000,00,00,000', '1,00,00,000,00,00,000'
'10,00,00,000,00,00,000', '100,00,00,000,00,00,000'
'1,000,00,00,000,00,00,000', '10,000,00,00,000,00,00,000'
Using regular expression to comma separate a large number in south asian numbering system