Solar flares are sudden and bursty emissions from the
atmosphere of the Sun. Temporal evolution of the flares consists of three phases viz. Precursor, impulsive and gradual. Latter two phases have been studies extensively, however underlying physical processes
of energy release during the precursor phase are not yet fully understood owing to lack of high cadence observations. I will present the current understanding on this phase of flare emission as well as my work on the same. Further, I will also present the thermal characterisation of flare plasma in view of its iso/multi-thermal nature.