Hi Sourav8888.
I think, to get to your score goal, you should take advantage of your strength in quant to get some more questions correct there, and then get the rest of the way to your goal by improving your performance in verbal.
You may think that, since you're already at 49 in quant, you can't increase your score much by improving in quant, but the truth is that your total score is based on your actual performance in quant and verbal rather than on your quant and verbal section scores. So, every additional question you get correct in quant will help to increase your total score.
Your ESR indicates that, in quant, you have the most room for improvement in Geometry. So, you could start by working on Geometry and then, once you're stronger in Geometry, you could continue by working on other areas of quant, mastering them one at a time to improve your expected performance bit by bit.
Regarding verbal, you can still improve in all areas of verbal.
One way to improve is to fill in any knowledge gaps you have in SC, partly by noticing what trips you up as you answer SC questions and reviewing it.
Also, make sure you have a clear understanding of what's an effective strategy for answering each type of verbal question.
Finally, a key aspect of mastering verbal is to practice untimed and achieve super high accuracy before seeking to answer verbal questions at test pace. The following accuracies would be good to achieve untimed.
Easy - 95%+
Medium - 90%+
Hard - 70%+
To achieve those accuracies, each time you miss a question, determine why you missed it and address whatever you find. Eventually, you will have addressed any issue that would cause you to miss a verbal question at which point you'll get almost every verbal question correct.
For more detail on how to master GMAT verbal, see these posts.
How to Score High on GMAT VerbalHow to Get Faster at GMAT Verbal