Hello Mahesh,
First of all i congrats for your achievement and now come to your future decision .. so i can only say the options which you can obtained for your future but for you only can know in which subject or field you have a intrest.. so as you asked

• First i will suggest you go for a Bachelor degree in science ..now days engineering is a very common course which very one is doing in b.sc you have a great career life .. as you do economic hons there is many field is there for you do give you a a vreat achievement
• Secondly yes, engineering you can do engineering as you not given any entrance exam but till now there is many pvt college entrance test registration is open you can apply
• Third ,last but not the least your intrest in which field you have a intreast tahts IMp then i can suggest you more better

Thank you for asking
I hope you are  satisfied
Best of luck.for you future