Marking a change of guard at the DMK after half a century, the party's working president MK Stalin was today coronated as the party president by the members of the DMK. Stalin, who was announced as his heir by late DMK chief Karunanaidhi, is only the second person to hold the top post in the party in its 50 year old history. Staling was elected as party chief in its national executive meet which was held at party headquarters in Chennai. Earlier, he was serving the party as its working president for the past three years. "Today's political situation has come as a grave challenge. education, art, literature, religion are under attack by authoritative and communal forces," Stalin said after his elevation. He trained guns at ruling Narendra Modi governmnet at the Centre. "Union govt is trying to destabilise judiciary, selection of governors. All this has dealt a blow to the secular principles," Stalin added. Stalin was elected unopposed as president of the DMK. The 65 year old leader was the only candidate to file his nomination for the party chief's post on August 26. "Only Mr M K Stalin's nomination papers were filed for party chief's post.. since none other than Stalin is contesting for the party president's post, Mr M K Stalin is being elected unanimously as the chief,"DMK general secretary K Anbazhagan said as members of the DMK's General Council cheered loudly.