  Kes 69, 3C 396, and 3C 400.2 are mixed-morphology (MM) Galactic supernova
remnants (SNRs), where Kes 69 and 3C 396 are interacting with molecular clouds
(MCs). Previous X-ray studies showed that the emission from these SNRs is
thermal. It has been suggested that MM SNRs interacting with MCs are potential
candidates for recombining plasma (RP) in X-rays and hadronic gamma-ray
emission. Recently, Chandra observations revealed signs of RP in 3C 400.2. Our
preliminary analyses show that the X-ray emission of NW and SE region of 3C
400.2 arises from recombining plasma. We detected GeV gamma-ray emission from
Kes 69 and 3C 396 above 5$\sigma$.
