“47.That a propounder has to demonstrate that the Will was signed by the testator and that he was at the relevant time in a sound disposing state of mind and that he understood the nature and effect of the disposition and further that he had put his signature to the testament on his own free will and that he had signed it in presence of two witnesses who had attested it in presence and in the presence of each other, in order to discharge his onus to prove due execution of the said document was reiterated by this Court amongst others in Surendra Pal and Ors. (supra) It was held as well that though on the proof of the above facts, the onus of the propounder gets discharged, there could be situations where the execution of a Will may be shrouded by suspicious circumstances such as doubtful signature, feeble mind of the testator, overawed state induced by powerful and interested quarters, prominent role of the propounder, unnatural, improbable and unfair bequests indicative of lack of testator's free will and mind etc. In all such eventualities, the conscience of the Court has to be satisfied and thus the nature and quality of proof must be commensurate to such essentiality so much so to remove any suspicion which may be entertained by any reasonable and prudent man in the prevailing circumstances. It was propounded further that where the caveator alleges undue influence, fraud and coercion, the onus, however, would be on him to prove the same, and on his failure, probate of the Will must necessarily be granted if it is established that the testator had full testamentary capacity and had in fact executed it validly with a free will and mind. (emphasis is mine)