We are reporting a discovery of X-ray pulsations from the source AX J1749.1-2733 with the period of \sim 132 s based on the XMM-Newton data obtained in March 2007 .
The observed pulse profile has a double-peaked structure with the pulse fraction of about 25 - 30 % in the 3-10 keV energy band .
We have also found that a periodicity with practically the same period has been detected from the source by the IBIS telescope onboard the INTEGRAL observatory during an outburst on Sept. 9 , 2003 in the 20-50 keV energy band .
Due to the double-peaked pulse profile , there is an additional peak on both periodograms of nearly \sim 66 s , therefore we have also investigated the possibility that the last value is the true pulse period .
The source spectrum obtained by the XMM-Newton observatory in the soft energy band is being heavily absorbed ( N _ { H } \simeq 2 \times 10 ^ { 23 } cm ^ { -2 } ) due to a strong intrinsic absorption in the binary system that leads to the conclusion that AX J1749.1-2733 is a new transient X-ray pulsar in the high mass X-ray binary system .