In Chandabolu Bhaskara Rao vs Betha Saidi Reddy on 5 April, 2006, Andhra Pradesh High Court, given direction that “Since promissory note is not a compulsorily attestable document, even if the signatures of the attestors are taken, after its execution it does not amount to material alteration, and so it does not get vitiated. Therefore, whether there were attestors or not at the time of its execution is immaterial, more so when its execution is admitted”