Fractional calculus is the branch of mathematical analysis to study which contracts with investigation and applications of integrals and derivatives of arbitrary order. Fixed point theory creates an important core part of the subject of nonlinear functional integral or differential equation. In fact, it is fair to the attractive the main driving force of rapid development of this field. The study of nonlinear differential equations modelled on such as dynamical system when the time is very large the characterizations include ultimate of attractivity asymptotic stability, monotonicity and positivity of the solutions etc. In this book we have mainly deal with the existence the solution as well as existence result for extremal solution and attractivity results to fractional order differential and integral equations in Banach Algebras.