Any suggestions here?? Picture above was taken at 1730 hrs, while this pic below was taken at 0710 hrs after Maghrib prayer. Leaves have retrieved their position to some extent. 2nd pic below was taken next morning and leaves have got normal. I am confused now, if curling of leaves was due to over watering or exposure to heat?

(Pic after Maghrib above)

(Pic of next morning above)
SK