Compare ISHM Kolkata Advance Diploma in Aviation, Hotel and Hospitality Management + BTS and Guru Nanak Institute of Hotel Management Diploma in Hotel Operation course on the basis of their Fees, Placements, Cut Off, Reviews, Seats, Courses and other details. ISHM Kolkata Advance Diploma in Aviation, Hotel and Hospitality Management + BTS course is rated 4.8 out of 5 by 1 genuine verified students while Guru Nanak Institute of Hotel Management same course is rated 3.8 out of 5 by 1 students at Shiksha. Explore Shiksha for detailed comparison on all course parameters and Download free information on After 10th Diploma Admission details, Placement report, Eligibility criteria etc.