I want to score 300 in jee mains.I have 1 year to left is it possible if i start from now and practice thoroughly??

Hello Umeed,
Scoring 300 marks in jee mains is not an impossible job.
But it requires continue hard work, interest, dedication and time management regarding your studies.
..
U will need to keep the pace high in all the three subjects .i.e PCM
Weaking in any of these will degrade your marks.
.
I must suggest select atleast two subjects and master them thorougly.
Like oick mup chemistry and maths.
.
Last thing! _

Praactice Practice Practice
Practice makes the man Perfect!