Three school students were killed and two others were seriously injured in a lightening strike this afternoon in the Janjgir Champa district of Chhattisgarh. According to official sources, the students were standing under a tree within the campus of the primary school in village Pauna, when they came under the impact of the lightening and thunder. The district administration has announced an ex-gratia of rupees one lakh each to the next of those killed in this incident.It maty be mentioned here that Chhattisgarh has been receiving medium to heavy rainfall in many parts of the state during the last 24 hours due to the low pressure area built over the Orissa coast.