Hey, Atman(in Hinduism) is same as Soul(in Bible). The concept of GOD in Vedas or Geetha is ALL PERVADING and this is also the case in Bible.
Dear Dhruba, sorry for you that you are misguided or frustrated soul. The techniques that are practiced in India may be referred to as Yoga, but they are also practiced in Christianity as well, though they may not be using the terminology.
You use your Intiotion and you will find the similarities and not the mere senses or the sense of Mind. If you do these, then, you will never find the Universal Truth.