Is Price Comaprision Legal In India .

Im providing accounting services online. Im not a CA. there are already similar online service providers X ,Y and Z who charge 50,60,80k respectively. if i simply tell me clients im charging only 30k even though other may charge him 50 to 80k , he may not belive me .So,if I open their websites ,take screenshots and produce to clients along with link ,is there anything against law in that . Im not manuplating anything,Im just comparing the prices those are facts declared by them. NOTE: there are many websites running in INDIA whose sole purpose is to compare prices of products in various websites .