Hello GearHeads

I own an Aveo 1.4 Mfg 2006. Purchased as second owner few months back. Few questions that I have :

1. I live in Mumbai and drive about 40 to 60Kms daily. Which Engine oil is best for this car for driving in Mumbai environment ?

2. What would be ideal service period - 7500 Kms or 10000kms ? Is servicing gap dependent on engine oil type ?

3. Any specific instructions that I need to follow for maintaining this car ?

Also I would like to have a look at the car manual, it would be great if someone can share a link for download.

Thanks in advance.