Tab index not working when use microsoft indic language input tools

See more:

C#

C#4.0

Hello to All,

I am working with one desktop application with two input language, 1)English 2)Gujarati

for Gujarati input i use microsoft indic language input tools software..

Now in my application in one form i have two textbox and one button,

i set textbox1 tabindex as 1 , textbox2 as 2 and Button as 3..

Now what's problem is when my input type is english above all tabindex work properly but when i use microsoft indic software for gujarati language tabindex is not working for my controls..

Even tab key not working for anything what i have to do for that..

Thanks and Regards