Hi SriKrishna,
Your thought on coming to HANA platform is very good one.
Answering to your point for
1. If you have the knowledge SAP BI 7.0 along with SAP BO BI then there is a good chance that you will land job as fresher in India as the employer feels that the training cost and time can be saved and you will be given preference, provided when you qualify all the tests conducted by employer.
One more point is anyone technology is enough to start your career (BW BI 7.0 or BO BI 4.0).
2. As i said in above point one technology is enough to start but if you have 1+ BODS then you will become a great asset to any company or employer.
3. 1+2+ HANA, simply a huge plus
4. 1+ 3 as i said is huge plus.
5. Experience is not required to do certification. So you have to take training from SAP authorized partners to have a bright future.
Here is the list of training centers in India. Click here.
Regards
Raj Kumar