CBSE 12th

Yes, you can get admission to Nitte (Deemed to be University) for B.Tech with 60% in Class 12th. Nitte University offers B.E. / B.Tech courses where candidates who have completed 10+2 with Physics, Mathematics, and Chemistry / Biotechnology / Biology / Computers / Electronics are eligible for admission. The selection criteria include valid scores in the Nitte University Common Admission Test (NUCAT) conducted by the university

With 70% in the class 12th you are eligible to get into Cluster Innovation Centre as the minimum percentage required is above 60% in any of the four subjects (including mathematics). However, it is not the only criterion to get a seat, you have to write an entrance test conducted by the university, they will give seats based on the merit list released a few days after the conduction of exam.

 Yes, you can get admission to IES Management College and Research Centre with 60% in Class 12th.

To take admission in this college you must have 60% in 12th board and its equivalent marks and have good rank in following exam

  CAT, XAT, CMAT, MAT, ATMA, MH-CET, GMAT.

Hi, though directly, the answer is NO.
The main eligibility criteria for admission in Amity Raipur is pretty simple to understand. Candidates must have earned a 10+2 degree in PCM, PCB, PCBM, or biotech from any accredited board. Other than this, they should have scored 80% in class 12th and above 55% in class 10th. 
Also, you must have done your 12th with one language as English.
But still, there are numerous provisions for the admission to Amity University Raipur based on your skills, which might be taken into consideration for the relaxation of marks.

Yes, You can get admission into Ramesh Sippy Academy of Cinema and Entertainment with 70% in your 12th as RSACE doesn't consider your merit based on 10th or 10+2 results. The eligibility criteria are set at 35% in 10 or 10+2. Rather he selection is done based on an entrance test taken by the institute. The forms are out for the registration of the FMEAT ( Film, media, and entertainment aptitude test) which the candidate can fill out on the official website of RSACE.  

One of the reputed Institute of Raipur Amity University if we talk about their eligibility criteria then it's very simple. They are asking only for 65% marks in class 12th and along with that they are also asking for JEE main and advance attempt which is conducted by NTA, a main body for entrance examination in India. 

Yes, you can get admission in this Institute with 60% in class 12th because they are mainly asking for your undergraduate degree marks which is to be at least 50% and other than that they are asking for any management entrance exam such as CAT, XAT, MAT, ATMA and others. They have set a cut off score of 60 percentile for CAT. CAT is one of the prestigious exam which is conducted by the Indian Institute of Management (IIM's) at various centres across India. 

In case you feel that you should have been awarded higher marks in a subject, you can apply for revaluation or rechecking of the paper. The marks awarded after the rechecking/reval shall be considered the final marks and a new marksheet will be issued to you thereafter.  

You can treat the CBSE sample paper as a mock test and time yourself while answering it. This will make you familiar with the exam pattern and marking scheme, after which you will eventually find the CBSE board paper easy.