Titanium to Gamma card

Is it possible to ceonvert titanium card to gamma card and if yes what is the procedure

Not possible. Different processors and Gamma OS is not public
There are some widely spread rumors around they all belong to the same family (AT90SC...)

Titanium 1s maybe the AT90SC3232C
Titanium 2s maybe the AT90SC6464C
Gammas maybe the AT90SC7272C
the list goes on and on...

of ATMEL cards, which makes it extremely possible they all have compatible CPUs but different EEPROM/FLASH sizes and most likely speeds as well. More info of course can be found from ATMEL's site. So, depending on the program size you want to load, it maybe possible to run the same program in different cards of the same family, however, very unlike this to happen unless you have the compiler (easy to get), and the source code (unreleased yet) or you may end up with a card running

Gamma processor is Freescale MMC2107. Not Atmel at all
Well the source code has been public for many months. However, the DES keys have been removed. So even if it was compiled for a different platform without the keys it could not work.
Furthermore, the basic working provider data (PMK/ProvID and Axi/Exi /HexSN) are not obtainable to end users. It seems only the Gamma team can dump them (or obtain them in other ways). This has all stopped now
And I am sure those DES keys will never be released for very obvious reasons. I think we are getting a little bit off topic Yes, 3DES CBC
There is something really interesting about all this though, the Infinity USB, once you set the card to gamma, identifies it as AT90SC7272CC
Yes, very wrong.
Whoever originally wrote the lookup table assumed (like many, including me at first) it was 7272c
it's possible to convert a titanium file to a valid gamma fileit would be possible - BUT only if you knew how to decrypt a Titanium 3 file. No one knows how to do that! The RSA keys are very secret.