This academic book contains the hard work done relating to hypotensive anaesthesia.Hypotensive anaesthesia is a delicate phase of administration of anaesthesia .This technique has various positive impact on outcome of a successful surgery.The major contribution include creation of bloodless surgical field,reduction of intra-operative blood loss etc.From its first day proposal by Cushing in 1917 to its modern era (today)reaching its peak time through various phases of development.