Hi Shreya!

Since, you had completed biology, you had covered 50% of NEET portion.

In order to study chemistry,

firstly, do Inorganic chemistry well.

Inorganic chemistry requires a lot of memorizing.

Go through important Inorganic chapters like co-ordination chemistry, p block elements, chemical bonding and periodic properties.

Organic chemistry requires lots of efforts and practice at the same time.

Try to do atleast basic chapters of Organic Chemistry such as Isomerism, General Organic Chemistry (GOC), Alkanes, Alkenes and Alkydes.

Go through numericals of Physical Chemistry.

Lastly, solve past year questions of all chapters as much as you can.

Solving past year question will not only boost your confidence but also give your an idea of questions that can appear in exam.

Be Consistent.

All the best!

Hope this helps!