You can register online or by phone or by mail. The detailed information about registering for the GRE can be found at www.yocket.in
Extracurriculars are always an add-on to your profile. Any achievements at the state or national and international level are considered important. Working for social causes such as for an NGO or charity trusts on a regular basis
Based on what parameters you're looking for, the confusion in choosing the best universities for your profile could be exhausting! Ask your questions or help others out with their dilemma.