I wanna give GMAT exam which is the best time to prepare for GMAT (I am in tybcom now)n which classes I should go for GMAT.

Confirmed tuition for the schools in this guide ranges from roughly ₹41.6 Lacs (Trinity Business School, Ireland) to ₹77.65 Lacs (Warwick Business School, UK), excluding living costs. Always check the school's current official fee page, since figures are revised annually and can shift with exchange

Not directly. Employers evaluate MBA graduates on professional experience, leadership record, communication, and industry exposure. And not on whether the GMAT specifically appeared in their application file.

Ireland has one of the more genuine discretionary waiver policies among ranked European B-schools - Trinity Business School can exempt candidates with 8+ years of management experience or a quantitative Master's/PhD from the test entirely, subject to admissions-team approval.

Yes for admission to Columbia Uni MBA course, Indian students have to submit a GMAT / GRE score. For the Class of 2025, the GMAT score for the MBA enrolled students at Columbia Uni was 734. For GRE Verbal and Quantitative, 163 was the score. 

For MBA course of TAMU, a GMAT / GRE score is required and a Bachelor's degree. 3 years of work experience is also required.

For GMAT waiver for TAMU MBA, students are required to have a strong Undergraduate GPA and at least 3 years of work experience.