Looking for a good GMAT Couching center in Kolkata

Hi,I started my preparation for GMAT few days back and I have realized doing that by my own would be difficult. I am struggling a lot in Sc’s and RC’s in Verbal and DS questions in Math. Considering joining a couching institute.I got to know a…

Hi,

I started my preparation for GMAT few days back and I have realized doing that by my own would be difficult. I am struggling a lot in Sc's and RC's in Verbal and DS questions in Math. Considering joining a couching institute.

I got to know about few testprep centers like Jamboree, Roads, Princeton and Chopra's. Need someone to advice me on which one to join from these or if there are any other institutes that you could suggest.