  We report here the occurrence of glass-like kinetic-arrest of first-order
phase transition of R-3c to Pbnm in a supercooled LaxMnO3\pm{\delta} (X= 1 &
0.9 and {\delta}>0.125) below its insulator-metal transition employing
low-temperature transmission electron microscopy (TEM) and x-ray diffraction.
No transformation was observed even in a ~12 hrs aged LaxMnO3\pm{\delta} at 98K
until unless it was triggered insitu using e-beam irradiation in TEM. A
systematic triggering at different temperatures has revealed the occurrence of
kinetic-arrest situation similar to stable glass-formers. This has been
attributed to the suppression of Johan-Teller distortion by double exchange.
PACS number(
