Convert Amount into Words according to Indian or Nepali Numbering Style.

 
In the post http://techcreeze.blogspot.com/2008/11/convert-amount-into-words-according-to.html, I have talked about the converting amount (in number) to amount in words according to English Numbering Style.
 
I am including here, source code of functions required for converting Number into words according to Indian or Nepali Numbering style. In Indian or Nepali Numbering style, 100000 is 1 Lakh and 100 Lakhs or 10000000 is 1 Crore. This makes the numbering style different from English and International Numbering Style.
 
1. Function to Convert one Digit Number to words.
 
CREATE    Function dbo.fConvertDigit(@decNumber decimal)
returns varchar(6)
as
Begin
declare
@strWords varchar(6)
 Select @strWords = Case @decNumber
     When '1' then 'One'
     When '2' then 'Two'
     When '3' then 'Three'
     When '4' then 'Four'
     When '5' then 'Five'
     When '6' then 'Six'
     When '7' then 'Seven'
     When '8' then 'Eight'
     When '9' then 'Nine'
     Else ''
 end
return @strWords
end

 
2. Function to convert 2 digit number to words.
 

CREATE    Function dbo.fConvertTens(@decNumber varchar(2))
returns varchar(30)
as
Begin
declare @strWords varchar(30)
--Is value between 10 and 19?
If Left(@decNumber, 1) = 1
begin
 Select @strWords = Case @decNumber
     When '10' then 'Ten'
     When '11' then 'Eleven'
     When '12' then 'Twelve'
     When '13' then 'Thirteen'
     When '14' then 'Fourteen'
     When '15' then 'Fifteen'
     When '16' then 'Sixteen'
     When '17' then 'Seventeen'
     When '18' then 'Eighteen'
     When '19' then 'Nineteen'
 end
end
else  -- otherwise it's between 20 and 99.
begin
 Select @strWords = Case Left(@decNumber, 1)
     When '0' then ''  
     When '2' then 'Twenty '
     When '3' then 'Thirty '
     When '4' then 'Forty '
     When '5' then 'Fifty '
     When '6' then 'Sixty '
     When '7' then 'Seventy '
     When '8' then 'Eighty '
     When '9' then 'Ninety '
 end
 Select @strWords = @strWords + dbo.fConvertDigit(Right(@decNumber, 1))
end
 --Convert ones place digit.
 
return @strWords
end
 
 
3. Function to convert amt in numbers to words. (Built with the help of above 2 functions)
CREATE function dbo.fNumToWords (@decNumber decimal(12, 2))
returns varchar(300)
As
Begin
Declare
 @strNumber varchar(100),
 @strRupees varchar(200),
 @strPaise varchar(100),
 @strWords varchar(300),
 @intIndex integer,
 @intAndFlag integer

Select @strNumber = Cast(@decNumber as varchar(100))
Select @intIndex = CharIndex('.', @strNumber)
if(@decNumber>99999999.99)
BEGIN 
 RETURN ''
END
If @intIndex > 0
begin
 Select @strPaise = dbo.fConvertTens(Right(@strNumber, Len(@strNumber) - @intIndex))
 Select @strNumber = SubString(@strNumber, 1, Len(@strNumber) - 3)
 If Len(@strPaise) > 0 Select @strPaise = @strPaise + ' paise'
end
Select @strRupees = ''
Select @intIndex=len(@strNumber)
Select @intAndFlag=2
while(@intIndex>0)
begin
 if(@intIndex=8)
 begin
  Select @strRupees=@strRupees+dbo.fConvertDigit(left(@decNumber,1))+' Crore '
  Select @strNumber=substring(@strNumber,2,len(@strNumber))
  Select @intIndex=@intIndex-1
  
 end
 else if(@intIndex=7)
 begin
  if(substring(@strNumber,1,1)='0')
  begin
   if substring(@strNumber,2,1)<>'0'
   begin 
    if (@strRupees<>NULL and substring(@strNumber,3,1)='0' and substring(@strNumber,4,1)='0' and substring(@strNumber,5,1)='0' and substring(@strNumber,6,1)='0' and substring(@strNumber,7,1)='0' and @intAndFlag=2 and @strPaise=NULL)
    begin
     Select @strRupees=@strRupees+' and ' +dbo.fConvertDigit(substring(@strNumber,2,1))+' Lakh '
     Select @intAndFlag=1
    end
    else
    begin
     Select @strRupees=@strRupees+dbo.fConvertDigit(substring(@strNumber,2,1))+' Lakh '
    end
    
    Select @strNumber=substring(@strNumber,3,len(@strNumber))
    Select @intIndex=@intIndex-2
   end
   else
   begin
    Select @strNumber=substring(@strNumber,3,len(@strNumber))
    Select @intIndex=@intIndex-2
   end
  end 
  else
  begin
   if(substring(@strNumber,3,1)='0' and substring(@strNumber,4,1)='0' and substring(@strNumber,5,1)='0' and substring(@strNumber,6,1)='0' and substring(@strNumber,7,1)='0'  and @intAndFlag=2 and @strPaise='')
   begin   
    Select @strRupees=@strRupees+' and ' + dbo.fConvertTens(substring(@strNumber,1,2))+' Lakhs '
    Select @intAndFlag=1
   end
   else
   begin
    Select @strRupees=@strRupees+dbo.fConvertTens(substring(@strNumber,1,2))+' Lakhs '
   end
   Select @strNumber=substring(@strNumber,3,len(@strNumber))
   Select @intIndex=@intIndex-2
  end
 end 
 else if(@intIndex=6)
  begin
   if(substring(@strNumber,2,1)<>'0' or substring(@strNumber,3,1)<>'0' and substring(@strNumber,4,1)='0' and substring(@strNumber,5,1)='0' and substring(@strNumber,6,1)='0' and @intAndFlag=2 and @strPaise='')
   begin
    
    if len(@strRupees) <= 0
    begin
     if convert(int,substring(@strNumber,1,1)) = 1
     begin
      Select @strRupees=@strRupees+'' + dbo.fConvertDigit(substring(@strNumber,1,1))+' Lakh '
      Select @intAndFlag=2
     end
     else
     begin
      Select @strRupees=@strRupees+'' + dbo.fConvertDigit(substring(@strNumber,1,1))+' Lakhs '
      Select @intAndFlag=2
     end
    end
    else
    begin
     if convert(int,substring(@strNumber,1,1)) = 1
     begin
      Select @strRupees=@strRupees+' and' + dbo.fConvertDigit(substring(@strNumber,1,1))+' Lakh '
      Select @intAndFlag=1
     end
     else
     begin
      Select @strRupees=@strRupees+' and' + dbo.fConvertDigit(substring(@strNumber,1,1))+' Lakhs '
      Select @intAndFlag=1
     end 
    end
   end
   else
   begin
    if convert(int,substring(@strNumber,1,1)) = 1
    begin
     Select @strRupees=@strRupees+dbo.fConvertDigit(substring(@strNumber,1,1))+' Lakh '
    end
    else
    begin 
     Select @strRupees=@strRupees+dbo.fConvertDigit(substring(@strNumber,1,1))+' Lakhs '
    end 
   end
   Select @strNumber=substring(@strNumber,2,len(@strNumber))
   Select @intIndex=@intIndex-1
  end
 else if(@intIndex=5)
  begin
   if(substring(@strNumber,1,1)='0')
   begin
    if substring(@strNumber,2,1)<>'0'
    begin
     if(substring(@strNumber,3,1)='0' and substring(@strNumber,4,1)='0' and substring(@strNumber,5,1)='0' and @intAndFlag=2 and @strPaise='')
     begin
      Select @strRupees=@strRupees+' and ' +dbo.fConvertDigit(substring(@strNumber,2,1))+' Thousand '
      Select @intAndFlag=1
     end
     else
     begin
      Select @strRupees=@strRupees+dbo.fConvertDigit(substring(@strNumber,2,1))+' Thousand '
     end
     Select @strNumber=substring(@strNumber,3,len(@strNumber))
     Select @intIndex=@intIndex-2
    end
    else
    begin
     Select @strNumber=substring(@strNumber,3,len(@strNumber))
     Select @intIndex=@intIndex-2
    end
   end 
   else
   begin
    if(substring(@strNumber,3,1)='0' and substring(@strNumber,4,1)='0' and substring(@strNumber,5,1)='0' and @intAndFlag=2 and @strPaise='')
    begin
     Select @strRupees=@strRupees+' and '+dbo.fConvertTens(substring(@strNumber,1,2))+' Thousand '
     Select @intAndFlag=1
    end
    else
    begin
     Select @strRupees=@strRupees+dbo.fConvertTens(substring(@strNumber,1,2))+' Thousand '
    end
    Select @strNumber=substring(@strNumber,3,len(@strNumber))
    Select @intIndex=@intIndex-2
   end
  end 
 else if(@intIndex=4)
  begin
   if ( (substring(@strNumber,3,1)<>'0' or substring(@strNumber,4,1)<>'0') and substring(@strNumber,2,1)='0' and  @intAndFlag=2 and @strPaise='')
   begin
    Select @strRupees=@strRupees+' and' + dbo.fConvertDigit(substring(@strNumber,1,1))+' Thousand '
    Select @intAndFlag=1
   end
   else
   begin
   Select @strRupees=@strRupees+dbo.fConvertDigit(substring(@strNumber,1,1))+' Thousand '
   end
   Select @strNumber=substring(@strNumber,2,len(@strNumber))
   Select @intIndex=@intIndex-1
  end
 else if(@intIndex=3)
  begin
   if  substring(@strNumber,1,1)<>'0'
   begin
    Select @strRupees=@strRupees+dbo.fConvertDigit(substring(@strNumber,1,1))+' Hundred '
    Select @strNumber=substring(@strNumber,2,len(@strNumber))
    
    if( (substring(@strNumber,1,1)<>'0' or  substring(@strNumber,2,1)<>'0') and @intAndFlag=2 )
    begin
     Select @strRupees=@strRupees+' and '
     Select @intAndFlag=1
    end
    Select @intIndex=@intIndex-1
   end
   else
   begin
    Select @strNumber=substring(@strNumber,2,len(@strNumber))
    Select @intIndex=@intIndex-1
   end
  end 
 else if(@intIndex=2)
  begin
   if substring(@strNumber,1,1)<>'0'
   begin
    Select @strRupees=@strRupees+dbo.fConvertTens(substring(@strNumber,1,2))
    Select @intIndex=@intIndex-2
   end
   else
   begin
    Select @intIndex=@intIndex-1
   end
  end
 else if(@intIndex=1)
  begin
   if(@strNumber<>'0')
   begin
    Select @strRupees=@strRupees+dbo.fConvertDigit(@strNumber)
   end
   Select @intIndex=@intIndex-1
    
  end
continue
end
if len(@strRupees)>0 Select @strRupees=@strRupees+ ' rupees '
IF(len(@strPaise)<>0)
BEGIN
 if len(@strRupees)>0 Select @strRupees=@strRupees + ' and '
END
Select @strWords = IsNull(@strRupees, '') + IsNull(@strPaise, '')
select @strWords = @strWords + ' only'
Return @strWords
End