What does M. T. I. mean?

Mother tongue influence.
Shortly it is abbreviated as MTI.

What does it mean?
If you are not a native speaker of a language, (eg.English), when you handle English, your mother tongue will show its influence unfortunately. This intention is called M. T. I.

It's a sensitive situation to a non-native person of English. Can one be away from the influence of his Mother tongue?

In one way it is possible. If you think your ideas always in English, can be farther distance from thinking ideas in your mother tongue. But can't be without the influence of mother tongue.
Even if you think your ideas in your mother tongue, such ought to be done in  English dialect. This is the big task to one whose mother tongue is not  English.

This task can be cracked easily only by Listening, Speaking, Reading and Writing activities.
Who does these activities as a routine work can be very good in English like a native speaker.

Above all, you must be very much interested to breathe English. Grammar is the rule of a language. So, Learning Grammar is very important to construct your ideas under the rule.
V. MAHENDIRAN
FOUNDER
MAHENDIRAA INSTITUTE OF MUTUAL SPOKEN ENGLISH
(MIMSE)
NAGAPATTINAM