Exam

You need to appear for the entrance exam for admission in B.Sc and BE.d:
For further details, visit:
https://www.shiksha.com/teaching-education/exams/rie-cee/application-form

First of all, congratulations on your marks though they are not good, but you have qualified JEE Mains and this may be demoralizing for you, but I am quoting true facts. No college in India can guarantee you at least 10 LPA even no one would not guarantee 1 LPA not even IITs and NITs. Even they have

TGT is for candidates who have completed their graduation with at least 50% marks and have a B.Ed/BTC or any other training certificate. PGT, Post Graduate Teacher is for candidates who completed their Master's degree and their relevant teacher training course such as M.Ed.

Check the below link for details about IGNOU OpenMAT entrance exam-
https://www.shiksha.com/mba/exams/ignou-openmat/dates

You have a good academic profile. A good score in CAT preferably above 98 percentile will be good enough to get a call from IIMs. Just prepare well for CAT join a good coaching institute and test series. Apart from CAT score, a good performance in WAT/PI is also needed to grab a seat in IIM.

Some of the top CAT coaching institutes are:
Alchemist Institute
TIME Institute
Mindworkzz
Career LauncherAnkGanit
IMS Institute
Tathagat Institute
This article might help:
https://www.google.co.in/amp/s/www.shiksha.com/mba/articles/amp/top-10-coaching-institutes-in-india-for-mba-entrance-preparation-bl

Check this link: https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor?utm_source=connect&utm_medium=CR_JEECP&utm_campaign=7476690.
Hope this helps. Best of luck!