Conversion from ttf to type 2 CID font (type 42 base font)

I have ttf font files for Indian languages such as Tamil, Telugu, Malayalam, etc.

I would like to access them through a Postscript program.
I want to convert  ttf files to Type 2 CIDfont (Type 42 base font).

I tried online conversion but unfortunately they failed to convert.
Is there is any conversion utility available?

Thanks in advance.