Hi, there are severe consequences if you duplicate your documents. To name a few you might be charged with hefty amount as a fine. If they find malpractices during the process of faking a documentation like bribing might make you end up behind the bars. If you have some how managed to take a further degree those will get invalid too. You will also be barred from all the boards in the country for a lifetime. You might get blacklisted from institutes and will not be able to work as a student or a employee.

Now, coming to getting 2 admissions. You can apply to as many colleges you want but you have to take admission in one university only. It never happens that you get two admissions at the same time either both or one will be discarded automatically. The case might be different if you have applied offline. Still while verifying your documents no two universities can admit you. It doesn't work like that.