B.Tech

you have lots of scope you can prepare for upsc,civil services
or go for masters in India and also in abroad.

here your marks doesn't matter what you are going to study in btech,your skills and knowledge matter rearly companies like google, Microsoft,yahama,Benz rearly ask for marks they need skills not marks

check out this link.
https://www.shiksha.com/top-engineering-colleges-in-mumbai-all-rankingpage-44-0-0-10224-0

It depends on ur interest. but if u are asking about scope then CSE has better future than civil

Go in that college where cut off is high because there will you get better classmates. Classmates also matters along with feculty.

You also have a option if your finantial condition is not very good :-
You can do polytechnic in CS from good govt. college plus bca from distance learning symultaneously.
After then you can do Job along with part time b.tech or MCA distance learning.

just check on shikha.com for better results.

You will get these colleges in 2nd and 3rd round I suggest you to go for Kalyani

with 73 you are not qualified for jee mains thus you will get no govt college but you can try for private college like galgotios Amity lovely etc