I get 150 marks in Jan mains and I belong to obc category can I get DTU college

HELLO AKASH
The percentile equivalent to your marks is 98.14939961 - 97.75686494
Congratulations for your result and qualifying JEE mains.since it is very difficult to predict the exact rank but we do have a backup we have a formula to calculate the expected rank that is (100 – Total percentile) x 869010/100.So according to formula your expected rank for present percentile for January session comes out to be 16163 . Now the expected rank might change depending on the no of candidates appearing the april session. For ex if 12 lakh candidate appear the april session then just replace 869010 by 12 lakhs. But if you score above 85 percentile then you have a very decent chance of qualifying jee mains.
Now since the official cutoffs fro college are yet to be decided but let us analyse your chances by looking into the previous year cutoffs data and since you did not mention your category and whether you live in delhi so let us assume it to general category
Delhi Technological University(2019)

A) Delhi Region

Bio-Technology    33638

Civil Engineering    27702

Computer Engineering    5896

Electrical Engineering    22529

Electronics and Communications Engineering    14863

Engineering Physics    28400

Environmental Engineering    32863

Information Technology    7985

Mathematics and Computing    12072

Mechanical Engineering    19703

Mechanical Engineering with Specialization in Automotive    23231

Polymer Science and Chemical Tech    32137

Production and Industrial Engineering    30139

Software Engineering    10013

) Outside Delhi Region

Bio-Technology    6535

Civil Engineering    5375

Computer Engineering    1418

Electrical Engineering    4107

Electronics and Communications Engineering    2932

Engineering Physics    4298

Environmental Engineering    6127

Information Technology    1916

Mathematics and Computing    2599

Mechanical Engineering    4790

Mechanical Engineering with Specialization in Automotive    4944

Polymer Science and Chemical Tech    6852

Production and Industrial Engineering    6244

Software Engineering    2273
Well if you are from delhi then you have a very decent chances but if you are from outside delhi then it might be a little difficult but No worries since you have an april attempt left and most importantly baap of the exams i,e Advance which may directly lead you into IIts.But if you are curious to know that which college you might land into with your percentile then you can use the college predictor link which has following features;

JEE Main 2020 College Predictor

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JEE Main College Predictor 2020 - Predict Colleges based on your JEE Main Rank

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ALL THE BEST FOR APRIL AND ADVANCE!!