IMS Ghaziabad is better college.

According, to Careers 360 IMS has AAA+ ratings which means good and NDIM has AA+ rating which means fair. 

IMS is better in terms of ratings, placements, exposure and faculty.

You can also compare both the colleges from the given below link

NDIM, Ratings and Reviews

IMS, Ratings and Reviews

Good Luck!!

As per the Careers 360 rating all the colleges are average. You can choose any college according to your preference. 

You can also compare the colleges from the given below link

UCER Allahabad Ratings and Reviews

IMS College Ratings and Reviews

IIMT Ratings and Reviews

Good Luck!!

To be eligible for admission to the degree of B.A., LL.B., candidates should:

• Have passed the Intermediate/Higher Secondary School Examination (10+2) or an equivalent Examination from a University/recognized Board, securing in the aggregate not less than 45% of the total marks.
• Have been selected on the basis of Joint Admission Test (JET) conducted by the college.

So this is the criteria.

Rest details you can check below:

IMS Admission Process

Good Luck.

Actually I don't know particularly about Ghaziabad ,but there are good universities like Delhi Technological University, Delhi,Lovely Professional University, Jalandhar,SASTRA University, Thanjavur,Andhra University College of Engineering, Visakhapatnam,Cochin University of Science and Technology, Kochi

Good Luck