which is the best coaching institute for psychology in delhi?....does opting for it in civil service examination as an optional require a previous background of studying in graduation

Hi Pavan, There aren't as such any coaching institutes for Psychology but then you can opt for the one which are offering coaching in Civil Services as you are keen to opt for it in near future. To know about the institutes offering coaching for UPSC, refer to the following link: http://tinyurl.com