I'm a Maths-Biology student studying in 12th.After finishing my exam what professional course can i join?

I have great interest in Computer field.But in 12th, in my group i have only English,Tamil,Maths,Physics,Chemistry,Bo… So theirs no Computer subject. i wanna know what professional course can i join.My aim is to earn more money and should be well settled in my 25th age. now iam just 16. i want to study the course which should directly pave path to my bright future that after finishing the course i want to join in a multi national company.Help me....I'm little confused...........Thanks