Will can be proved by examining at least one witness--Alongwith it has to be shown that it was free from suspicious circumstances--Transfer of Property Act, 1882, Section 3--Evidence Act, 1872, Section 68--Succession Act, 1925, Section 63(c).--It may be true that deprivation of a due share by the natural heir by itself may not be held to be a suspicious circumstance but it is one of the factors which is taken into consideration by the courts