Exam

The attempts are numerous, but you should try for 2-3 times only. Pursue some other course if you are unable to qualify the exam.

You are very much eligible for all entrances and colleges as the criteria for it is a Bachelors with 50% marks. Some work experience also helps in getting a good business school.

Some of the best books comprise:
Mission MBA guide by B.S. Sijwali and Tarun Goyal by Arihant
MAT entrance exam with practice CD by GKP
The Pearson MAT super course with CD by Pearson
Study package for MAT by Arun Sharma
10 challengers MAT: 10 mock tests for MAT by Dharmendra Mittal
MAT score accelerator

TIME, CPLC, CATking, Career Launcher are some of the great coaching institutes for CAT preparation.

Durgadevi Saraf and Vidyalankar are two good colleges where you can get admission with this score. Kindly check below link for cutoffs in various colleges.
http://www.dtemaharashtra.gov.in/mba2015/StaticPages/frmCutOffListForCounseling.aspx?did=1494

There are many good colleges, some out of which include S P Jain, top seven IIMs, FMS Delhi, XLRi, ISB, IIFT Delhi, MDI Gurgaon, IMT Ghaziabad, JBIMS and KJ Somaiaya.

You need to give SNAP to get into SIBM.

Sorry to say but you are not eligible for any of the government colleges including NITs, GFTIs based on your marks.

Sorry to say but maximum of three times a candidate can appear in JEE Mains but for JEE Advanced, this is restricted to just 2 chances. In short you can't appear in JEE Advanced in 2017.