online

Hi Nandini!
Yes, you can if you wish to. Online courses are mainly meant for people who cannot manage a regular college because of working hours. Otherwise, a regular course is any day better than an online course. In order to apply for an online course, you can visit the website of the institute where you wish to apply and register yourself there with the necessary details.

Yes, online coaching can help you via mock tests and impart you basic tips for solving answers & on time management. You can also go in for regular coaching option for CAT.

Best 9 online coaching institute for CLAT are:
*IMS
*Career Launcher
*TIME
*Toprankers
*Legaledge
*CLATGyan
*Sriram law Academy
*CLAT Gurukul
* CLATapult.

You can apply for both but only one will be considered for your admission.

Go through the link below for details :
http://blog.imtsinstitute.com/online-bca-india-54557/.

Kahota - Ace Competitive Exams.
There questions are good. And full of aptitude. They offer performance reports, which are quite helpful. They increase the candidates' overall thinking ability.
They are quite reasonably priced too.

I think what you'll get online is an awareness program on how to identity bombs or diffuse them, etc.
Because this is all practical training and equipments are given with lots of precautions.
Visit the website, see if it helps:
https://cdc.garda.com/en/bomb-and-terrorist-threat-awareness-online