iTextSharp Indic Text Rendering Issue

It seems I’m close to the solution for iTextSharp Indic Text Rendering Issue.
The only way to render Indic text by using Ligatures only.I will try come up with complete solution in next few weeks.(Few busy days to go).Existing ArabicLigature solution won’t help Indic text Rendering.

Check this pdf Embeded font: Gautami

Sample PDF Generated via iTextSharp having Complex Telugu Char