Based on data you provided, these are the possibilities. You can go through and opt for whichever way you find comfortable.
Point 0:
HAL = Hindustan Aeronautics Ltd.
SAIL = Steel Authority of India Ltd.
Conclusion: Totally different industries so, comparison is of no use.
Point 1:
SAIL - you are not sure. Even no one is since, results are yet to come.
HAL - you are selected.
Conclusion: So, you must go to HAL as taking risk is not recommended in this situation.
Point 2:
HAL is related to aeronautic industry where metallurgy people have a little work to do.
SAIL is related to Steel industry and best meant for metallurgy people.
Conclusion: SAIL is better fit for your skills.
Point 3:
HAL - joining date is 31st December 2012.
SAIL - Result not OUT
Conclusion: You can wait till 28th December 2012; 18:00:00 hrs for SAIL result. If result not comes till then, you go for HAL.
Point 4:
HAL - bond of 5,00,000/- ; 5 years. ( @kplight Sir said that. )
SAIL - bond not directly mentioned. BUT 5,000/- per month to be deducted from total emoluments during training (2 years only).
Conclusion: So, you can join HAL now. After 5 years, re - apply for SAIL.
These are various possibilities, you review these and find out which one is suited for you.
anyone can please help me with electronics bhai gate ke liye electronics k questions kahaan se solve kar rahe ho aap log..........