Dear Akshay Yadav,

Thank you for putting up query in our platform. This is a major issue. The name in original certificate and in JEE Main must be same. Any small mistake can cause rejection of your form. I suggest you to contact the officials of JEE to sort out your problem before filling the JEE Advance form. Contact details are as follows:

Email - jeemain@nic.in 

Helpline No. - 7042399520, 7042399521, 7042399525, 7042399526

this is a serious problem. Just submit the certificate (original) whatever the name is printed on it. You are elligible for jee advance. Its just a space, so i dont think there will be proble for that juat need not to worry and prepare for your jee advance. And congratulation to you for getting eligible for jee advance. All the best , do your best. Have a great future ahead.