As you are asking for some of the best Polytechnic entrance exam coaching center in lucknow, so on your demand I am telling their name with contact info:

S-Orbit, Mahanagar
9305287910
No. S-58, Gol Market, Mahanagar, Lucknow – 226006

Allsoft Solutions Pvt. Ltd., Indira Nagar
8004500112
101/A, 2nd Floor, Sanjay Gandhi Puram,Grameen Bank of Aryavart, Indira Nagar, Lucknow – 226016

Smart Engineers Hub, Aliganj
7784881124
C-9, SECTOR - F, INFRONT SAHARA TOWER BEHIND SADAF CENTER, KAPOORTHALA, Aliganj, Lucknow – 226024

Guru Tutorials, Faizabad Road
8052230333
No. 624B/82, Ganga Vihar Colony, Faizabad Road, Lucknow – 227105

Ideal Institute, Telibagh
9336471508
Raibareli Road, Telibagh, Lucknow – 226025

Prabha Academy, Gomti Nagar
8052061000
No. 3/15 ., Gomti Nagar, Lucknow – 226010

Kaish Institute of Computer Education, Kapoorthala
7408091566
B-1/24, Sector-A, Chandganj, Kapoorthala, Lucknow – 226024

Nagarjuna Academy India's No.1 Institute for Junior Engineer, Krishna Nagar
9335639437
Technical Intermediate College, Asharam Bapu Ashram Road, Vijay Nagar, Krishna Nagar, Lucknow - 226005