As of my last knowledge update in September 2023, the Indira School of Business Studies in Pune, India, is a well-known business school that offers PGDM (Post Graduate Diploma in Management) and MBA (Master of Business Administration) programs. However, whether it is the "best" business school for these programs depends on various factors, including your specific career goals, preferences, and the most recent rankings and reviews available.Here are some factors to consider when evaluating ISBS or any other business school:

1. Accreditation: Check if the school is accredited by relevant accrediting bodies. Accreditation is a sign of quality education.
2. Rankings: Look at the latest rankings from reputable sources. These rankings can give you an idea of how ISBS compares to other business schools in India and globally.
3. Faculty: Research the faculty's qualifications and expertise. A strong faculty can greatly impact the quality of education.
4. Alumni Network: A robust alumni network can provide valuable networking opportunities and help you in your career.
5. Specializations: Consider whether ISBS offers specializations that align with your career goals and interests.
6. Internship and Placement Opportunities: Investigate the school's track record in terms of internship and job placements for its students.
7. Infrastructure and Resources: Examine the campus facilities, libraries, labs, and other resources available to students.
8. Location: Consider the location of the school and whether it aligns with your personal preferences and career opportunities.
9. Program Duration and Curriculum: Compare the program duration, curriculum, and elective options to ensure they meet your needs.
10. Financial Considerations: Evaluate the cost of tuition and the availability of scholarships or financial aid.
11. Alumni Success Stories: Look for success stories of alumni who have achieved their career goals after graduating from ISBS.

It's important to conduct thorough research and, if possible, visit the campus and speak with current students and alumni to get a better understanding of whether ISBS is the right fit for your educational and career aspirations. Additionally, check for the most recent information and reviews available online, as the status and reputation of business schools can change over time.