Why is CGC Landran not giving admissions in CSE to students with less than 75% in 12?

This is basically the admission criteria for management quota which is relaxed after some time. They could even ask for donations later. You can secure admission to CGC Landran in the following two methods: 

• You can appear for the JEE after which most students apply for the PTU Counseling system. This method mainly ensures that you get admission to the college without donations. This is only if PTU allows a seat to you in the college of your choice. 
• One of my friends went for admission in CSE in CGC with 67.4% in 10+2 through PTU counseling. My sister was admitted to CSE via PTU too. His profile was 58% in 10+2 with a good JEE Score that was close to 50-60 marks.

• On the other hand, if you have not appeared for the JEE, you might have to wait for a little while longer. Usually, the college will provide you with admission to CSE themselves and you might not have to donate any money. You can try visiting the college for 2 to 4 weeks after classes have commenced for the first semester.

They are generally on the lookout for admissions and at the start, claim that they have limited seats. They might push you in the direction of mechanical, electronics and IT but in my opinion, you should stick to the field of your choice. The ‘limited seats’ notion is mainly a business gimmick and out to fool people. You will definitely get the branch of your choice. You might have to persevere a little more for it, but it will be in your hands.