1. The
test is no longer referred to as SCJP. It is now OCJP or more precisely OCPJP, of which the latest versions are 6 and 7. The exam code for 6 is now 1Z0-851.
2. Google "OCPJP 6 1Z0-851". You'll get the link to the Oracle page where you'll find the exact syllabus. I recommend KathySierra&BertBates for OCPJP 6. They cover everything quite lucidly.
3. Create an account at www.pearsonvue.com . This is to schedule the exam.
Now assuming that you're in India, find a good center like NIIT or Aptech. They sell slightly discounted OCJP vouchers. NIIT's was not very discounted, the actual price is Rs. 8200 on PearsonVue and NIIT sells for Rs. 8014, atleast in Delhi.
I got my voucher code(just the code for Rs. 7700) from Aptech and scheduled the exam in their office to be sure that the code was legit.
Use PearsonVue's website to schedule the exam. They will have an option to enter a voucher code and you enter the code there to remove all costs.
I hope this helps.