USA

There are less possibilities for the same. To do your Masters in computer engineering, you should have the relevant background. You can write to the universities and get your profile checked. Certain universities will allow you to pursue the program after completion of a number of pre-requisite courses to build your foundation for computer engineering. Apart from this, your intention to study computer engineering must be strong that is why you want to switch from civil to computer engineering must be relevant and practical.

USA has most advanced aerospace engineering industry in world. It employs a large number of Indian and Indian origin professionals. You will be able to get job easily after MS and work for maximum 29 month under industrial training visa program. In the meantime, you can apply for H1 visa to continue working in USA.

Your jobs chances depend on your specialization in MS. You may share more details about your current and planned educational qualifications for further advice.

Dear Sunil,
You can pursue your studies there. It is going to be competitive with a score of 298 yet apply. Sometimes a good SOP works. Do take the TOEFL test too.

Dear Sayantan,
Scholarships in USA are awarded by the universities on merit-basis strictly. It is hard to say which university will give you one but if you do have an all-rounded profile with excellent academics and impressive extra curricular activities you can be pretty sure of a scholarship.

Dear Aniket, please refer to job portals of the respective countries. Getting a job as a doctor or nurse in these countries is very hard. You must have the qualification recognized by the respective countries and must pass the licensing exams.

Every university has its own criteria for scholarship, but it mainly depends on 4 important points:
1) Academic score
2) GRE score
3) TOEFL score E
4) Extra-curricular activities
First 3 are most important, so try to maintain your score over 7.5 CGPA, score above 310 in GRE and score over 100 in TOEFL
All the best.

Yes. you can. Grades should not stop you from applying for good universities. Appear for SAT and TOEFL exam, prepare a very good personal statement and your application well. Chances may be less in the top universities, but good application materials, and test scores work most of the time.
Best of luck.