Clarifications regarding applicability of GST on certain services – reg. Regularizing payment of GST on co-insurance premium apportioned by the lead insurer to the co-insurer and on ceding /re-insurance commission deducted from the reinsurance premium paid by the insurer to the reinsurer – reg. Razorpay's GST number search tool helps you search GSTIN online and verify the authenticity of GSTIN taxpayers. FREE Online Tool. One-Click Verification. GSTSearch.In is a website that allows you to check the validity and details of GSTIN/UIN numbers issued by the Indian government. You can enter the 15-digit GSTIN/UIN number or the PAN number of the entity and get the name, address, nature of business, status, and other information. Search your GSTIN/UIN of the Taxpayer number all over India ,Just type your GST number below and check name and address of the GSTIN/UIN holder.