Desi Khana, formerly on Roundhay Road, closed shortly after a damning environmental health check last year.
The inspection found the crumbling premises was dirty throughout, with a risk of food being contaminated and food safety being compromised.
Staff were found to disregard food safety systems and left rubbish to accumulate, making it difficult to check for pest activity.
Mr Khavar Hussain, director of Desi Khana Leeds Ltd, pleaded guilty to four charges of the takeaway breaching food hygiene laws on November 28 at Leeds Magistrates Court.
The company received a fine of £10,858.50 and Mr Hussain was served a personal penalty of £1,557.50.
The site on Roundhay Road is now under new ownership and Leeds City Council says improvements have been made to both the premises and the practices.
A spokesperson for Leeds Council said: "It is absolutely vital that owners of food premises in Leeds comply with food safety legislation, as failure to do so could result in serious consequences for the general public.
"The heavy fine handed out in this case is proof that we will not accept half measures when it comes to this issue.
"The people of Leeds can be assured that, as with this case, we will prosecute through the courts if our inspectors find that a premises does not meet food safety standards.”