Our group uses trapped and laser cooled ions for quantum information processing in a broad sense. This system allows a co-existence of both well isolated two or multi-level internal atomic states as well as quantized external oscillator states. Our current interest majorly lies in implementing quantum machine learning algorithms in a co-processor architecture with classical computers. Apart from advancing the basic understanding of the algorithms, we look for practical implementation of real-world problems. Given the versatility of the trapped ion system, we also explore implementation of quantum simulation as well as quantum metrology whenever quantum information theory provides an advantage.