B.Com

Hello Yash,
MBA in airline management is such a good course and it has a wide scope in India as well as abroad.
After that you can apply for jobs in many companies related to this field and you can also apply for the air force and after MBA you can also apply for the job in abroad there you will get a large salary package.
After B.Com you can apply for MBA. MBA is a Masters degree course so for this the candidate should have graduation in any subject with minimum 50% marks from a recognized university.
For the SC/ST candidate:
They need minimum 45% marks for the MBA.
After MBA if you will get good job in India then you can earn maximum 25000 rupees per month. After getting work experience or if you get good job in abroad then you can expect a salary up to 2-3 lakhs per month.
Here are some good colleges for MBA in airport management:
Rajendra Prasad Institute of Communication and Management
Kamala College of Management Studies
Dr. I.T. Institute Of Management And Technology - Patiala, Punjab
Flying Goose Aviation Academy(FGAA) - Kozhikode, Kerala
High Flyers Aviation Services - New Delhi, Delhi
Indian Institute of Management Training - Pune, Maharashtra
Gloriole Institute of Entrepreneurship & Management - Noida, Uttar Pradesh
PRIST University - Thanjavur, Tamil Nadu
Punjab Technical University - Jalandhar, Punjab
The Indira Gandhi National Open University - New Delhi, Delhi
All of these are good universities, you can apply for any of them.

You have multiple options after B.Com such as MCA, M.Com, MBA, finance certifications.
You will be eligible to do MCA if you had maths at +2 stage. It is very good option if you want to make your career in IT industry.
M.Com focuses on commerce, accounting, management and economics related subjects and prepares you for finance and accounting jobs in enterprises.
MBA is a generic course on business management and administration and it focuses on functional areas of business such as accounting, finance, marketing, human resources, and operations. MBA provides wider options in different functions and various types of industries. Although you must do post graduate degree based on your interest area, I will recommend MBA with finance specialization for better career opportunities and growth. You can top up M.Com and MBA qualifications with various finance certifications such as CMA, CFA, LOMA etc for career growth.