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Annual Subscription for FY2021-22

Members are requested to pay annual subscription for FY 2021 -22 through online payment gateway on CSOI website 
The last date of payment is 31st March, 2021. 
For further assistance kindly contact CSOI accounts in Vinay Marg on 011-26111080 or email to
For any Technical issues regarding payment gateway please forward an email to
** Please ignore if already paid.