Firstly thanks to all the members for guidance and help. I think my post was not clear. Here are some more details:
I know my wife before marriage (as we are relatives)
I did not have any contact (Phone, Email, Skype, Letters etc.) with her because I lived in Australia and she lived overseas. secondly its arranged marriage.
I got married last year with local traditions and I was physically there and we lived together after marriage for 1 month.
Since marriage I am supporting her financially and we in contact almost everyday through Email, Phone and Skype.
Now my question is how should I give "Evidence of contact before marriage" where I don't have any thing in black and white. Yes we did met on family gatherings and festivals but don't have pictures together. I hope it clears a little bit.
Again thanks for the help and guidance.
Gud Luk