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HSN Codes and GST Rates of HSN 998334

Engineering services for transportation projects

HSN Code Description of Service GST Rate

9983

 		Other professional, technical and business services (except research, development, legal and accounting services)

99833

Engineering services

This group includes application of physical laws and principles in the design, development, and utilization of machines, materials, instruments, structures, processes, and systems. Services of this type involve the provision of designs, plans, and studies related to engineering projects.

998334

Engineering services for transportation projects

This service code includes the application of physical laws and principles of engineering in the design, development and utilization of machines, materials, instruments, structures, processes and systems for transportation infrastructure projects like engineering services (including provision of designs, plans, and studies) related to highways, roads and streets, including elevated highways used for motor vehicle traffic; bridges and tunnels; ancillary road transport facilities such as rest stops, weigh stations, toll booths; mass transit systems, such as light rail or subway systems; railways and related structures; railway bridges and tunnels; marine and inland ports; harbours, locks, canals, and dams primarily used for transportation purposes; airports, runways, hangars; other aviation facilities; space transportation projects; oil and gas transportation projects; other transportation projects n.e.c.
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20 May

☑ Monthly | GSTR-3B

GSTR-3B for the m/o Apr 2025 (Monthly Taxpayer - Rule 61) - Either Compulsory taxpayer > 5 cr. or Voluntary taxpayer < 5 cr.

☑ Monthly | GSTR-5A

GSTR-5A for the m/o Apr 2025 [Return by OIDAR Service Providers - Rule 64.]

25 May

☑ Monthly | PMT-06

PMT-06 Monthly tax payment for Apr 2025 under QRMP Scheme [Rule 61(1)(ii) - Proviso to Section 39(7)].

Taxpayers have a choice to pay tax either, as per -  

A) Fixed Sum Method OR 
B) Self assessment basis subject to interest on short payment of taxes.
(Notification No.85/2020 - CT)
 
28 May

☑ Monthly | GSTR-11

GSTR-11 for the m/o Apr 2025 (Statement of inward supplies by persons having Unique Identification Number (UIN)).