Trending @Capgemini; How many days leaves can I get

I need to take leave, my hometown is far . Even if I take flight it will take 2 Days(coming and going) . I am thinking of applying for 7 days of privilege leave , and if I had work in home I may apply for another 5 days . So In total I am expecting 10-12 days of privilege leave ( I do have 15 days of privilege leave with me ) and didn't take any leave in the past 6 months .

Will the manager approve if I apply for 12 days . Or any other ways ?