*Article* **Inflation with Scalar-Tensor Theory of Gravity**

## **Dalia Saha \*, Susmita Sanyal and Abhik Kumar Sanyal**

Department of Physics, Jangipur College, Murshidabad 742213, West Bengal, India; susmitasanyal@yahoo.com (S.S.); sanyal\_ak@yahoo.com (A.K.S.)

**\*** Correspondence: daliasahamandal1983@gmail.com

Received: 2 June 2020; Accepted: 9 July 2020; Published: 1 August 2020

**Abstract:** The latest released data from Planck in 2018 put up tighter constraints on inflationary parameters. In the present article, the in-built symmetry of the non-minimally coupled scalar-tensor theory of gravity is used to fix the coupling parameter, the functional Brans–Dicke parameter, and the potential of the theory. It is found that all the three different power-law potentials and one exponential pass these constraints comfortably, and also gracefully exit from inflation.
