The existence of such agreement between two jurisdictional Commissioners is a condition precedent for passing the order of transfer. Except for the request which came from the investigation office, Chennai of transferring the case, there is no reference whatsoever to any such agreement. Clause (b) of subsection (2) of section 127 provides for consequences when there is no such agreement. When the jurisdiction to pass an order of transfer under clause (a) of subsection (2) of Section 127 can be exercised only when there is such an agreement, the fact that such an agreement exists ought to have been stated in the the show cause notice as the same is a jurisdictional fact. Apart from the failure to mention the same in the show cause notice, the only stand of the revenue is that there is an agreement by implication