Hii Shreya,

You can start of by a book by Arihant made specifically for DUJAT. It has all the topics covered and a few mocks too. Also for additional english preparation You can start off with Word Power Made easy, do this book twice, don't rush but read it and learn for 30-45 mins everyday. For Quants and LR-Di Arun sharma. Giving a mock a week and analyzing your strengths and weakness in terms of topics, score, and the time you are spending per question is really important.

Do take mocks religiously and you'll see how much it can affect your preparation in a positive manner. You can also take mocks by Pratham or CL.

You can reach out to us for more help.

Thanks.