Two groups clashed at a gurdwara in New Delhi on Thursday ahead of a meeting of Delhi Sikh Gurudwara Prabhandak Committee (DSPC), injuring four persons.The incident took place at Rakabganj Sahib Gurdwara this morning when supporters of Paramjeet Singh Sarna and Manjeet Singh clashed.The meeting of DSPC Working Committee was scheduled for the day. Though both the groups alleged that shots were fired, Delhi Police spokesperson Rajan Bhagat said it could not be verified."There was no evidence of fi