Get Online Study Material for CBSE Class 11 and 12 Mathematics, it will cover whole syllabus of IITJEE Mains and IITJEE Advance with the video lectures by experienced and famous teachers. This external hard drive contains: 266 hours of 581 video parts with 130 GB size. Supplemented with 987 pages and 42 MB size of e- study material. It covers Mathematics of XI and XII standard CBSE and competitive exams like IITJEE mains and Advance. Validity: 2 years. Compatible OS: Windows XP/7/8 , License: Single Machine with Windows Operating System.