Wow..its like 6 months bonus.. 

@CoolerThings: don't think there is a "rule" on increment when promotion, it's all depends of your company, your boss and your negotiation skill.
If people doing the same job as your's are getting higher salary, then you can try to bring up this issue to your boss, otherwise you can consider leaving or staying in this company but look for job etc.
Or wait next increment time and at this time say something like "I have now proven for X months I can do same job as senior people so I would like to have the same type of salary as they have"

@gunh: offers seems pretty similar to me really, 200rm is a bit low to jump ship in my opinion so for me it would falls to stuff like location, company (one is MNC, other SME), your current boss/colleagues and how much you comfortable with them, is your job now nice or not etc.

Yar, true, I missed that point, sorry!
Which actually would make me consider the new offer in a much better light.
I would consider one less day of work per week for (almost) the same salary a big increase of my per hour salary.And free time is in my opinion worth a lot since I don't think my whole life is for working.

If you combine this with the other small advantages (more leaves and petrol in new job), that would maybe make me jump ship.

Guess it all depends of the possible opportunities you think you may have in your current company compared to the new offer, if really you think the SME is better in the long run, it might be something to consider also.