nehul tyagi, I think you must manually input XGR token in myetherwallet to tell it to search for that token balance. I don't think it searches for that token automatically. Possibly the token is still new and it is not automatically added. Then they will show up.
  
Or try sending the tokens to fusionwallet.io it is much easier and the tokens will show up and you will be able to stake easier. It worked for me.