West Bengal Pollution Control Board Address Phone Number

While following step for online application on 05/07/2016 for renewal of consent to operate as per received letter dated 01/07/2016, I have followed all step described in this letter, but my application been shown error first time there is error in co information though I put everything right as per instruction of this letter received from your end. Then while putting information afresh after entering the 2. Step co0000000078213 the application showed error site policy required, after all modifications no further page could be open, I have communicated the matter through letter as well through email wbpcbnet@wpcb. Gov. In, but still nothing have done. I have several time telephone to resolve the problem in 0343- 2546708 for nine times at 11. ten am, one time at 11. 56 am and four times at 12. 26 am all call been remain unattended all the time on other day as well. Please help further so that no fine can be taken for late renewal because I have no fault and please let somebody available to resolve online application related problem.