Company's mobile phone

I got a mobile phone from my co. Pur cost was 10000=00 but co. debited me 2000=00 only & took a cheque for the amt.

1. How to account this 2000=00 i.e what should be the name of the ledgers that needs to be opened along with its Tally GROUP?
2. Can I claim depriciation also.?
3. If yes, how much & what method (wdv/ slm, other) & which amount (10,000=00 or 2,000=00)?
4. Under which GROUP this depriciation would go?

Pl note, pur date is 25-March-2012.  So I need details for prev as well as current accounting year.

Thanks in advance.