MBA/PGDM

Yes, you can appear for MBA exam. You can sit for CAT/ MAT/ XAT/ IIFT/ SNAP and similar MBA entrance exams in the pre-final year of graduation. By June or July, candidates should try and complete the entire core CAT syllabus. The primary sections of CAT syllabus are Data Interpretation, Logical Reasoning, Verbal Ability and Quantitative Aptitude. Thereafter, candidates can start focusing on speed-building, accuracy building and later on move to full-length mock tests, Candidates should look at finishing the entire CAT syllabus by August. They should not stretch the course till the very end.
August - Complete core CAT syllabus
August-end to mid-September - Experiment with exam strategy, Take timed sectional tests, Practice question selection & prioritization, Focus on accuracy building,
mid-September to mid-October - Full-length mock tests
October - Revision & Mock tests

Some tips one should consider:
Prepare all the topics listed in the syllabus. In case a topic gets left out, candidates will risk their chances of obtaining a high score.
Avoid picking a new topic.
Candidates must also select appropriate study material as it will help them understand the structure of entrance test.
Avoid any kind of guesswork. Negative marking is applicable in the exam and it is better to leave those questions whose answers candidates are unable to determine with conviction.
Take as many mock tests as possible before the actual day of the test. Mock tests help candidates identify their strong and weak areas. Mocks give them the chance to strengthen those weak areas.
Prepare a schedule which must be followed religiously. By the time the exam day arrives, candidates will become skilled at allotting equal time to each section of the test.
Vocabulary is an integral part of any entrance test these days and candidates are advised to strengthen it as much as they can. It is advised that they read as many newspapers as they can daily and mark down words they have unknown so far and then check for their meaning.

It is not mandatory that a PGDM is equal to MBA because then the college offering the PGDM course must have accreditation from AIU.
Although there are similarities between the curriculum of both, differences exist as well. A student pursuing MBA will be studying more of the theoretical aspects of management. An MBA institute will be following a fixed curriculum as it will be based on the university guidelines.
A student pursuing a PGDM course will be gaining knowledge regarding building soft skills and the programme is more industry-oriented. An autonomous institute does not have to follow university standards, so it is free to change its curriculum according to industry standards and change in the business environment. The course will prepare you for a senior level position in a company.
The fee is high in case of PGDM as compared to MBA. MBA institutes charge a lesser fee as it is almost similar to university standard.
An aviation manager is an airport representative who supervises consistency with nearby, local, state, and government guidelines and controls, guaranteeing that an airport or its department run proficiently and securely while regulating the employment and management of airport or office staff.
Candidates in top management occupations like these can hope to extend work periods of time because the aviation manager is in charge of the achievement or disappointment of the whole association. Night, end of the week and occasion shifts are a plausibility, since air terminals may serve incoming and outgoing flights during those times.

Yes, you can take MAT exam after attending the counselling at MBA colleges. Counselling just helps you in selecting the right specialization and college for MBA. You must look for Placement scenario, fees, alumni network, infrastructure, course curriculum, some small points like Student-Faculty ratio. These factors you must consider before making any decision on the MBA college or specialization. Choosing MBA College for you that is AICTE recognized and accredited by prestigious higher learning commission. It is the primary way to make sure that the B-school meets prescribed academic standard. How corporate industry view your MBA degree depends on the reputation of MBA college from which you receive your MBA Degree. MBA Counselor helps you find one.
A good MBA college does take GD-PI/What-PI after shortlisting the students based on entrance exam scores. Most of the good colleges keep this screening for admissions.

Coaching/ Online any option for ICET exam preparation is fine. The private institution will help you n facilitating some tips and tricks, common misconceptions, common mistakes students generally commit. Online will be a virtual preparation method. It will not help you a lot if you are writing ICET exam for the first time. Some tips you should keep in mind during ICET exam are:
Don't waste time in doing things and topics which are not much stressed upon.
Candidates should choose or select the appropriate study material so that they can easily understand it and it will help them to understand the structure of the exam.
Always play safe. Don't go for too high or too low level of the question banks or sample papers.
Making a good assessment of the exam preparation by keeping the record of the number of wrong or right answers while solving the sample or previous year question papers is a must.
Time plays a crucial role in achieving success. Aspirants are advised to manage time. 150 minutes will be given to the candidates for answering the 200 MCQs. The candidates must keep their eye on the clock as it is obligatory to finish the exam on time.
Take mock tests on a regular basis and analyze them well in order to identify your weak and strong sections. Work hard on the weaker sections and convert them also to your stronger ones.
Check the below link for ICET exams related sample questions:
https://www.shiksha.com/university/andhra-university-visakhapatnam/exams/icet/sample-papers

Choosing a college for MBA depends on your score in the entrance exam, your profile, the budget you likely to spend, accreditation, course/curriculum, infrastructure, placement scenario, alumni network, any specific specialization you have interest and the location of the institute. If you are looking for MBA in operations management or any similar discipline than NITIE-Mumbai, SIOM-Nashik, IITs are best for this. If finance is your field of interest then IIMs, XLRI, JBIMS and FMS-Delhi. Apart from this irrespective of your interest, top 10 colleges for MBA are:
Faculty of Management Studies (FMS), University of Delhi, Delhi, Indian Institute of Foreign Trade (IIFT), New Delhi, Indian Institute of Management, Ahmedabad (IIMA), Indian Institute of Management-Bangalore (IIMB), Indian Institute of Management-Calcutta (IIMC), Indian Institute of Management-Lucknow (IIML)
Jamnalal Bajaj Institute of Management Studies (JBIMS), Mumbai, Management Development Institute (MDI), Gurgaon, S. P. Jain Institute of Management & Research (SPJIMR), Mumbai, XLRI Xavier School of Management, Jamshedpur.