hello aspirant,
first of all i wish you for a best and good profession and life ahead,  since the field of electrical engineer is very bright and there are very excellent future career prospects.
well, now you are currently in 11th, so i suggest you to start preparing for the exam right now.
after completing your12th, you need to appear the respective entrance exam of respective boards.

• There are many engineering entrance exams like
• 1)EAMCET
• 2)TSCET
• 3)JEE
• 4)SRMJEE
• 5)GAT .
• well depending up on the performance of the score in the exam ,you are getting admission in particular branches when you meet the cutoff requirements.
• although ,the cutoff ranks and marks varies accordingly to the category wise, and different factors like every year the basis of paper was difficult and it also depends on number of students attempting the exam.
• for particularly in to electrical engineering , you should be in a rank of below 7000 ,so that you will meet the requirements and admission will be given directly with out going for further counsellings.
• of course,it varies accordingly to categories ,but if the maximum.limit would be in that range means sure you will get.
• for more information regarding different cutoffs for IIT'S and other reputed institutions regarding electrical engineering ,go through to find the appropriate cutoff's for different categories.
• https://www.google.com/amp/s/engineering.careers360.com/articles/iits-cutoff-for-b-tech-electrical-engineering/amp

hope you understood,
thank you