ترجمه - لیتوانیایی-انگلیسی - kas cia raso?

I think the word "here" isn't necessary here. It may be used, but not necessarily - this phrase is usually used in sms'ing, when you get an sms from someone whom you think you don't know. I think "Who is writing" would be enough.

My version: "Kas čia rašo?"