Natal Horoscope Chart Why Is My Western Birth Chart (horoscope)different Than My Vedic Birth Chart?

Why is my western birth chart (horoscope)different than my vedic birth chart? - natal horoscope chart

My image of the West, "said my sun in Scorpio all Vedic said he was in Libra ... everything is different.
I refer to the position of the planet can not change, no matter what method is used?
Also check the width, length, and all information and are the same, only my card, everything is different ... Can you tell me what my spreadsheet properly?

October 30.1990
Jamshedpur, India
11:21