How do I apply for SAP Labs in India being a fresher?

There are three ways:

• Apply through a friend who is working for SAP labs
• SAP labs usually conducts a code hackathon scouting India for the best Coders. So keeping monitoring the SAP Software Solutions | Technology & Applications
• Look at the jobs in SAP portal and keep applying. You may never hear from them, but who knows the hiring manager may be interested in you profile and can hire you.

All the best!