IIMs can be broadly categorized into two categories; the first comprising IIM ABC and the second comprising IIM KIL. The total fees will be around 16-18 Lakhs or a few lakhs more for these IIMs. As far as the average package is concerned for IIM ABC, it is around 19-20 Lakhs while for IIM KIL it is merely 2 lakhs less. The highest CTC is around 60-70 (International) for these IIMs.

Coming to JBIMS, we get to witness a much higher ROI. This is because the average package is almost similar to these IIMs while the fees are much less. Also, it is a Mecca for Finance enthusiasts. JBIMS has many notable alumni that carry its brand name proudly. Some of them include

• Vinita Bali, Managing Director of Britannia
• Chanda Kochhar, Managing Director & CEO, ICICI Bank, India
• Nitin Paranjpe, CEO and Managing Director, Hindustan Unilever Ltd
• Ajay Piramal, chairman of Piramal Healthcare

So yes, the salary packages of certain IIMs might be slightly higher than that of JBIMS but considering the ROI factor that slightly differs doesn't really matter.

The Department of Instrumentation and Control Engineering at NIT Trichy has fifteen permanent faculty members with teaching and research interests that cover a broad range of fields. The department consists of six well-equipped laboratories which are attached to the curriculum development. Additional four research-oriented labs are present in the department. All laboratories are very well established with adequate facilities.

Instrumentation and control engineering is a diverse field and offers scope in various fields. ICE at NIT Trichy enjoys placement good enough to be considered in top 5 branches. As a student of ICE, you can choose between software, electronics, core instrumentation, and management jobs. So if you are good and have got a decent CGPA, you won't find any difficulty getting a job in some top companies.

Go for this course only if you are really interested in Instrumentation. Otherwise, join some other branch in NIT Trichy so that you are able to learn something.

ISB Hyderabad has a strong track record of successful placements. As of the current placement drive for the PGP batch of 2023, a total of 1578 offers have been made, including 36 international offers, with an average package of INR 34.21 LPA. Additionally, over 14% of the offers were for leadership and general management roles. 

The average salary for the mid-80 % of students was INR 32.76 LPA, which is a 20.8% increase from the previous year. The placement drive saw participation from 393 recruiters, with notable companies such as Axis Bank, KPMG, Wipro Ltd, and CK Birla Group among them.

The overall IBS average CTC for the 2020-22 batch is INR 8.71 lakhs and the highest domestic salary package is INR 21 lakhs. While the highest international salary package is INR 53.45 lakhs.

The ratio of salary between the batch is like

• Top 200 students - 7.5 lakhs. In hand was mostly 50k/- month after tax, pf, gratuity
• Next 500 students - 4.5–6 lakhs - In hand 35k/- month
• Remaining: up to 4.5 lakhs or unplaced. In hand minimum 25k/- month 

My friend got placed decently while at IBS Hyderabad. Some major highlights of the placement scenario then were

• People who started with good brands and salaries but below-average job profiles remained stuck for several years
• The profile of the candidates mattered the most during placements. Anyone with skills that are in demand can claim a good position in the corporate world.
• Many students, especially girls who left India to pursue MS in MIS, etc are earning 100k+ USD.
• Many students who initially started with a sales job, switched domains and are now earning 20+ LPA

IIM Raipur boasts a diverse range of graduate classes with variations both within and among batches. The inter-batch variation is primarily caused by the dependence on corporates, with the first 4-5 batches displaying a slight variation. Intra-batch variation, on the other hand, is a result of factors such as previous experience, the domain of choice, and interview performance among students. 

The campus placements at IIM Raipur are noteworthy, with a good variety of offers made concerning different functions. The strongest pool of recruiters came from the Analytics and Consulting sector, with an average salary of Rs 18.15 LPA and a high-end compensation of Rs 32.21 LPA. Additionally, IIM Raipur effectively retained all major recruiters and attracted many new recruiters. Sales and Marketing came in second, with an average salary of Rs 17.48 LPA and the highest salary of Rs 31.90 LPA. Financial Management & Operations followed, with average offers of Rs 16.72 LPA and Rs 18.64 LPA, respectively. Students were also offered General management roles, with an average salary of Rs 16.29 LPA.

ISB Hyderabad placement statistics are given below

The components in the packages generally include

• Fixed salary
• Performance Bonus (10–20% of total CTC)

Apart from this, some companies give a joining bonus of around 1–3 Lakhs which might or might not be considered as a part of CTC.

The table below will help you get a generalized picture of the IMT Ghaziabad placement 

Coming to the second part of your question, a package of 15 LPA and above is certain for those who have scored the highest percentile only. It’s not possible for B Schools to offer package roles to the entire batch to maintain a high average figure. So before joining a college for MBA you should analyze whether the package you will get will compensate for the hefty fees you pay.

IIM Shillong is renowned not only for its strong placement record but also for its high return on investment (ROI) for students. The fee for the institute's MBA (PGP) flagship program is approximately INR 10 lakh per year, while the average salary package offered to students is above INR 15 lakh per year.

In the 2020-22 class, the institute achieved a 100% placement record for its largest batch to date, with over 73 recruiters participating in the process. 

The highest salary offered increased by 72.56% to INR 55.22 lakh per year, and the average salary offered increased by 20.50% to INR 23.10 lakh per year. The average salary offered to the top 50% of the batch also rose by 16.08% to INR 26.95 lakh per year. These strong placement results demonstrate the value of an MBA from IIM Shillong and the demand for its graduates in the job market.

IIM Amritsar has made its name in the IIM family due to the following 

• Corporate Competitions’ Presence
• Student Achievements
• Placement Records

All these achievements have made it among the fastest-growing IIMs. So I don’t understand why people keep questioning and judging an Institute of National Importance.

Now coming to your question, yes RBI did visit the IIM Amritsar campus for recruitment last year for Summer Internships but the exact role and package were not revealed to the public. Try to get in touch with some batchmates to get this info.