Hey brother!
There are following models of lancers common in Pakistan:-
1. 1.3 GL, GLX, GLX automatic. (CBU).
2. 1.6 GLX, GLX SR, GLX AUTOMATIC, GLX SR AUTOMATIC. (CBU).
3. 1.5 Automatic (Imported).
Now comes the question of owning one.
Brother it's totally up to your budget you can get a good 1.3 GL or 1.3 GLX in this budget, though automatic would be a bit expensive. Good 1.6 and 1.5 lancers are above 13 lac.
Maintaince won't be a problem if you get a good car and regularly maintain it. Problem comes when you neglect it, then the car will become a nightmare. But still it's easy.
Fuel Efficiency:-
Brother I have 1.3 GL (MANUAL). My gives me 13-14 km/L in city with A.C. It gives me 17-18 Km/L on long at a constant speed of 110-115. I suggest you to put 10 liters of high octane and 40 liters of regular fuel (Euro 5).
Parts:-
Brother when it comes to parts don't compare it with city as city is cheap to maintain. Lancers comes head to head with COROLLA XLi GLi and Civic Exi. It's parts are as same as Corolla and civic's. They are available readily. Almost every single part of LANCERS is available (kabli and New).
Comparison:-
Trust me you can't compare Lancer with city. Drive of LANCER is almost as good as Corolla and far better then civic and city. It's a comfortable car. I once visited motorway and my car did 180km/h without shaking. This car is very stable. These are treat for someone who knows how to own this. Just keep it's maintaince up to date and you will be the happiest man on planet. That 4G engine in all lancers is as durable as rock. It won't break. Styling of this car is sleek and cutting edge according to it's time. I am sure you will love it. Buy and car for 10 lacs and spend least 1 lac on it to make it better.