The Indian team today began their three-day training camp ahead of their Test series against Australia starting next week with a three hour-long practice session in Bangalore, with senior batsman Sachin Tendulkar returning in the mix after his retirement from ODI cricket.Tendulkar appeared relaxed and confident after scoring two hundreds in the recently-concluded Ranji Trophy season.New face Shikhar Dhawan and Murali Vijay were seen sweating it out at the side nets using the 'high altitude mask', which helps in achieving increased mental and physical stamina levels.Virender Sehwag, Murali Vijay, Ajinkya Rahane, Shikhar Dhawan, Cheteshwar Pujara and Ravindra Jadeja also batted at the centre of the pitch.