I’m travelling from Muscat carrying a 32 inch Sony Bravia LCD. Would I have to pay duty on it? and how much amount of duty is allowed for a passenger returning after 45 days?
Yes, you will have to pay duty on it
Duty Free allowance is INR 45k (Source, table at bottom of page 1), However, the duty free allowance is not applicable on LCD TV's (Notes in middle of page 2, point 2.6)
The rate of duty is 36.05%