In his last letter to Hardy, Ramanujan gave a list of seventeen functions F(q), where q is a complex number and |q|<1 and called them “mock theta functions”. He called them mock theta functions as they were not theta functions. He further stated that as q radially approaches to any point e2pir (‘r’ rational) there is a theta function (q) r q such that F(q) (q) 0(1) r - q = .Moreover there is no single theta function which works for all r i.e. for every theta function q(q) ,there is some root of unity “r” for which F(q)- q(q)is unbounded as q®e2pir radially. In this paper we obtain relations connecting mock theta functions, partial mock theta functions of Andrews  and infinite products analogous to the identities of Ramanujan.