I want to translate this....

can you tell me who will change that word ?

Looks like you need to send a patch yourself, by registering on GitHub and clicking the pencil icon at https://github.com/wikimedia/jquery.ime/blob/master/src/jquery.ime.inputmethods.js

If you didn't fix this yet: what is the new translation you want us to put?

Currently it's called as "लिप्यन्तरणम्" @NehalDaveND: is this still wrong, or it's correct now (i.e. matches "transliteration")?

It is right.