can i get admission in its ghaziabad if i m failed in 12 class

No, you cannot get admission in ITS Ghaziabad if you have failed in Class 12. In fact, no university will accept you in this case. Every university has a minimum eligibility criteria of around 50-60%. 

ITS Ghaziabad offers BBA and BCA programs of three-year duration. Students are selected based on the merit list and no entrance exam is required. The eligibility criteria are as follows

• Applicants who complete 10+2 with a minimum of 50% marks 
• Applicants that belong to the reservation category should score a minimum of 45% marks in 10+2

As you can see the minimum eligibility criteria is 45% and 50%, it’s impossible to get admission if you have scored below it.