hi,

see it may possible to find college in same district, but there is less of chances that the distance of the colleges would be same for both of you. however you did not mention about any particular state name. In west bengal there is jadavpur university, which offer b.arch course as well as b.tech in marine engineering by Marine Engineering and Research Institute affiliated to jadavpur university . admission is based on wbjee score.

refer to the link below to know about marine engineering colleges in india:

https://engineering.careers360.com/colleges/list-of-be-btech-in-marine-engineering-colleges-in-india

refer to the below link to know about b.arch colleges in india:

https://engineering.careers360.com/colleges/list-of-b-arch-colleges-in-india