Considering the suggestion of Prof Tim Cahill,  Prof Raik  Prof Madhav Deshpande and Prof Wujastak tried some alterations.  But the real challenge is, there is more than one design of each character, for instance, there are 4 types of letter द, at least two types of e matra, the below image shows two types of च्छ.

also, I will try the i matra, probably 4 types required like in the below image