Check this Link An Environmentally Controlled Dairy Farm with Swedish Cows 23 Nov 2011 by SMEDA.ORG Lahore Pakistan - YouTube
Owner of the farm bought 50 Swedish cows for $4500 each and a/c to their claims these cows are giving an avg of 32+ Liters and 40+ liters during Peak days. Each consumes TMR of worth 300pkr per day. Rest u can do the maths urself 
Second option in Foreign Breeds is Australian Holeistein who gives average of 24 liters per day and will cost around 320-350k pkr. You can get from here Complete Dairy Farming Systems for Modern Dairies | DairyCare Pakistan
Another option is there in terms of cross breed (Foreign mother local bull) they will cost u something like 220k-250k pkr and gives 18 litres on avg daily.
Dairy farming is definitely a lucrative business with very high returns but like other fields, we Pakistanis are very behind in it.
Per animal production in our country is just above 3000 litres (annualy) while Israel is producing 11000 liters annually per animal 
To get a better idea u should contact Mr Adnan 03224003541, He is Smeda's manager of dairy sector in punjab region