Sutras like Panini's Grammer written 5th century BC are great product of formal knowledge from India. However, writing emails is not the same thing:

- Sutras solved the problem to retaining large chunks of knowledge.

- Sutras had formal rules to keep the meaning unambiguous.

- Sutras were written by the sages who had lot of knowledge and control over language.

-Sutras were written in Sanskrit. A highly malleable (due to SANDHI and SAMAS) yet a precise language.

- English is not the right language to write tersely.