There is nothing best or everything best, What career You choose depends on Your skills, and Your interest, If someone tells you that civil services are the best career option but What if you do not have any interest. Money is another factor that comes after your interest, every career option has a lot of money if You have skills and Passion about it.

There is a lot of option You can try and explore to find which one is best for You, But remember You will not find it unless You try. So, first of all, find something that makes you happy and later finds what are the necessary skills you need to gain in order to work for Your Passion. Since we know nothing about You so I don't think that We could suggest You any specific thing to You because there is an unlimited Number of career option You have even You can find new ones.

For freshers its difficult to generate 3-4pacs per month.

However Engineering from top IIT/NIT/IIITs and MBA from top IIM can fetch su h good salary per month.

However it all depends on how well you perdorm in Interview and how strong you're at Functional knowledge and Communication and Management skills.