I am a 12th pass student. Can I become TT in the railway department?

Yes, students can apply for Travel and Tourism course while waiting for their class 12th results. They can appear for entrance exams and enroll on provisional basis, which means it is on the condition that they pass class 12th with the college desired percentage and all required conditions. Students

Yes, many UG courses like Bachelor of Tourism and Travel Management, BBA in Tourism Management, etc. are available for Tourism and Travel. Students need to check the application process and eligibility criteria for the course and college. Some colleges accept students on the basis of their class 12t

The admission process for travel and tourism courses is simple for the most part. First, you have to choose a degree, since there are multiple options for the type of degree. Next, you have to choose a college. Visit college website and check the admission criteria and process.

That depends on the student and his/her interests. For example: A student with a PCM background might be interested in pursuing AI as a subject can opt for a BSc AI & Machine Learning degree. 
Whereas another student from PCB background might be interested in microbiology can do a BSc Microbiolo

No, Nirma University BA LLB (hons) eligibility criteria does not require cadidates to have Law as a mandatory subject in Class 12 board exams. A candidate's chosen stream or set of subjects in Class 12th are irrelevant for BBA LLB (hons) course's eligibility.