Hello student as you're a student of electronic and communication branch I believe you need to do hard programming on your laptop so you can purchase any laptop of your budget, but if you're planning to learn programming in future then go with Apple Mac book because it's most recommended laptop for programming or go with laptop which has specifications of 8GB RAM, 1TB HARD DISK, SSD, Battery Backup of minimum 4-6hrs and light weight.

Feel free to comment if you have any doubt

Good luck