I have done my diploma in mechanical engg n have a work exp of more than 5 years can i go for a mba course directly without graduation?

Dear, Yes on the bases of your diploma course and experience you can do MBA even you can go for E-MBA. There are few institutes in india from where you can do MBA and can complete within short span of time ie within 1yr by taking fast track option and can take specilized subject in project Mgt/Oper