One of my friends has been researching this topic for quite some time. So sharing his views might help answer your question. According to him, it totally depends on what you are getting initially. 

• If you manage to get top IIITs like IIIT Hyderabad, IIIT Allahabad, IIIT Delhi, or others then only go for them. 
• Some courses are far better in NIT than IIIT according to the placements and other facilities that are being offered. 
• The NIRF ranking matters to a large extent. It can sometimes favor you during placements.
• The placement statistics should be kept in mind. Always take up a college that has the placement record of usually placing 90% or more.
• Do check that the placement is consistently good, decreasing or increasing.

Lastly, we can say that for choosing a particular college always consider the parameters mentioned above and then make your final decision. Because this will shape your career ahead.

There is no such specific CAT percentile that will guarantee admission in any of the IIMs as the admission depends on various factors. Which are as follows.

1. CAT score: Usually, students with 99+ percentile get into further rounds.
2. Academic records
3. Work experience
4. Gender diversity
5. Engineering or Non-engineering candidate
6. Extra-curricular activities.

After getting through these factors, there will be GD and PI. Most of the candidates get stuck at this phase.

Here are some of the tips to do well in GD and PI. 

• It is important to be real and authentic. Try avoiding bluffing.
• Do not get panicked or stressed.
• It is okay if you can’t answer a few questions. Try managing the situation.
• It is important to show the achievements.
• It is important to be well prepared for the general question and academic-related questions.

It is important to be active and well prepared for all the cases.

Talent is not what companies seek, they wish to hire someone with average talent just to sell their products.

There is a training period given to someone who gets recruited as a fresher, and that costs money to the company and to recover that, they have a certain period of work assigned to the employee. Even though Cognizant doesn't have a bond, they have something similar. 

If you were extremely talented, you wouldn't want to work for a client where your task involves running a SQL query, or preparing reports or even fixing bugs or testing if on a page all buttons are working or not.

You will want to leave as soon as possible which they don't want. So they hire people with an average IQ, those who can do the required tasks when they want and don't argue much. 

There are many coaching centers throughout the country for IES and GATE coaching. However, these 2 institutes enjoy a huge reputation and recognition at the national level due to their experienced faculty and their study material quality.

Made Easy:

• It is one of the best in the field when it comes to GATE and IES coaching. They have the best faculty teaching the subjects for the students. 
• Their specialty lies in their high quality and concise presentation.
• One of my friends enrolled in the Delhi center weekend coaching program, which he claimed to be good.
• Their online test series is one of the best you can opt for. They are prepared keeping the present pattern in mind. The number of students enrolled is hefty and gives you a clear picture of the competition.
• Some criticize that their teaching lacks depth compared to other institutes. Their courses and tests require analytical knowledge and are more than enough to crack GATE/IES exams.

IES Masters:

• This institute is one of the best in this field and has earned respect for its excellence and quality coaching within a short span of its inception.
• All the major subjects for all batches are handled by Mr. Kanchan Thakur who is the director of the institute. He has a brilliant command over all the subjects in Civil engineering.
• The study material of this institute is best and is even recommended for those who choose civil engineering as an optional subject in UPSC exams.
• One small setback is that other faculties than the director are not on par when compared with the faculties of Made Easy.

For the GATE Online test series, you can opt for Made easy test series, and for the IES test series you can opt for IES Masters. If you plan to join made easy to enroll in Super Talent Batch which has all top faculties teaching in this batch.

For Classroom coaching for civil engineering in GATE/IES, Super talent batch can be preferred if not then IES Masters. For Postal study course, one can opt for IES masters.

Among all these examinations, XAT is most difficult, followed by CAT. The difficulty level of the exams, in descending order (most difficult to easy) is XAT> CAT> IIFT> SNAP> TISS> NMAT.

Now, let us dive into a detailed analysis behind the assigned ranks and the difficulty level.

IIFT- 

• The questions asked in IIFT are a mixture of moderate and difficult. 
• The struggle lies in the attainment of marks within the cut-off range, both total cut-off and individual section cut-off. 
• Therefore, the students have no option but to perform exceedingly well in all sections, GK included. 
• The acceptance rate of IIFT is comparably low, only 400 students get admitted out of 50000 students.

SNAP – 

• The entrance exam is easy but the tough part is to score marks that will be eligible for admission into Mumbai, Pune, Bengaluru, or SCHMID branch. 
• These are the branches which are of good quality, unlike the rest of them.

TISS- 

• The exam pattern of TISS is easy but the GK section is the most dangerous part among them. 
• The questions asked in the GK section comprise both general knowledge and current affairs, therefore the portions are cover is endless.

NMAT- 

• NMAT exam can be successfully cleared with proper preparation. The questions asked are conceptually based. 
• No negative marks are given for wrong answers, hence the students are free to attempt all the questions fearlessly. 

MICAT is pretty easy. If you want a career in brand marketing and advertising it is necessary. 

Therefore, from the above discussion, you can estimate the logic behind ranking the difficulty level of exams.

The quality of the university depends on which branch you plan to take. There are quite a few good options you can choose from. Some of the private colleges offer really good courses in computer science engineering and electronics and communication engineering as compared to government universities. Thus, my advice to you would be to select the branch that interests you and work from there to select the college you want to go for.

Reputed Colleges:

There are quite a few options you have to choose from after giving AP EAMCET. Some of the colleges based in Andhra Pradesh include the following.

These places will give you the knowledge and add value to your resume. 

College-based on Branch:

If you are looking at a specific branch, for example, computer science and electronics and communication, some colleges are better. 

• These include Vignan University and Raghu Engineering college which will help you with placements. Here, some of the top product based companies with good packages hire students annually. 
• In case you are considering going for civil engineering, GMR Institute of Technology is a really good institute worth considering. 

Other colleges you can look at are RVR JC Guntur, JNTU Anantapur, and VR Siddhartha Engineering College. Finally, have a look at the rankings and also try to get in touch with students from these colleges who can give you reviews regarding the place before you choose anything.