Moving to KL------Help Required

Hi

You know the exchange rate ya? RM1000.00 = around Rs17,000.00 +
You work it out

Here a decent 3 brm apt - RM1,600.00 to RM2,000.00 ( If this is covered under your relocation benefit - good )
Utilities - water, electricity, telephone, TV channels etc - RM500.00 
home cooking is surely cheaper & healthier ( provision & marketing ) -  RM1,500.00
Your EMI  - RM5,000.00
Misc Expenses ( Transport etc - ) - RM500.00

Rest you decide

Word of warning - if your hubby does not complete 182 days presence in Malaysia he will be taxed at the flat rate of 25% on income earned. It would be important to take this into account and also that no absences for social purposes of 14 days and more would be possible in that 6 month period as it would break the continuity and zero the day count, therefore delaying the qualification date.

The company might conduct a medical because of insurance liabilities for their staff, so you would need to ask them that question about pre-existing conditions. The immigration process in itself does not require a medical for employment passes, but can for other classes of permits that permit work. This would involve blood work and a chest x-ray.

I am not sure if they will refuse his visa due to Hepatitis B. Only in certain cases Immigration ask for a blood test (mainly for workers, maids), so they should not ask it to your husband.
I am not sure about the INR, I do not know how much it is worth.
13,000RM is a decent salary if income taxes are paid by your husband's employer with a medical coverage.
I did not understand if your husband's company is also paying for the rent in KL? A 2 bedroom apartment in KLCC area costs 3,000RM/month.
From your message, I understand you do not have children, which means no school/nursery costs.
So the package is pretty good for a couple.
Sorry, I cannot answer regarding the INR part... Maybe you should just convert INR in MYR and deduce it from the salary - rent, then you will know what you are left with!
Good luck