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Subrata Kundu
About Subrata Kundu
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Subrata Kundu is a Director at Keyline Digitech Private Limited (since 2022), Director at Thinkai Business Solutions Private Limited (since 2025) and Additional Director at Sramani Institute (since 2023). The companies operate in Information Technology, Healthcare and Service. The largest current company by reported revenue is Keyline Digitech Private Limited at ₹2.38 Cr (FY 2023). Earlier, Subrata Kundu was a Director at Keyline Technologies Private Limited (2012–2014) and Director at Reach Dredging Limited (2012–2014) and 3 more.
Current companies
| Company | Designation | Appointment | Founded | Revenue | Status |
|---|---|---|---|---|---|
 Keyline Digitech Private Limited U74999WB2022PTC252576 | Director | 29 Mar 2022 | 2022 | ₹2.38 Cr (FY 2023) | Active |
 Thinkai Business Solutions Private Limited U62090TS2025PTC204187 | Director | 18 Sep 2025 | 2025 | Active | |
| Sramani Institute U85100WB2012NPL173117 | Additional Director | 15 Feb 2023 | 2012 | Active |
Previous companies
| Company | Designation | Appointment | Founded | Revenue | Status |
|---|---|---|---|---|---|
| Keyline Technologies Private Limited U72200WB2012PTC180738 | Director | 18 Apr 2012 | 2012 | Strike Off | |
 Reach Dredging Limited U61200WB2010PLC141151 | Director | 31 May 2012 | 2010 | ₹142 Cr (FY 2025) | Active |
| Keyline E-Commerce Private Limited U72200WB2012PTC180947 | Director | 24 Apr 2012 | 2012 | Strike Off | |
| Keyline It Solutions Private Limited U72300WB2012PTC172043 | Director | 12 Jan 2012 | 2012 | Strike Off | |
| Rashmi Manthan Dredging & Infrastructure Private Limited U74999WB2012PTC183756 | Director | 13 Jul 2012 | 2012 | Strike Off |
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Board colleagues of Subrata Kundu
| Name | DIN | Company | Designation |
|---|---|---|---|
| Sharmista Kundu | 09539592 | Keyline Digitech Private Limited | Director |
| Joydeep Rakshit | 07614122 | Thinkai Business Solutions Private Limited | Additional Director |
| Rakesh Kurakula | 07021550 | Thinkai Business Solutions Private Limited | Non- Individual Subscriber |
| Amalesh Das | 10056744 | Sramani Institute | Additional Director |
| Asit Kumar Mitra | 03549327 | Sramani Institute | Director |
| Cevoor Radhakrishnan Sathyanarayanan | 06689109 | Sramani Institute | Director |
| Kakoli Mitra | 03443677 | Sramani Institute | Director |
Directorship timeline
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Frequently Asked Questions about Subrata Kundu
Subrata Kundu currently holds 3 directorships: Keyline Digitech Private Limited (Director, since 29 Mar 2022, revenue ₹2.38 Cr (FY 2023)); Thinkai Business Solutions Private Limited (Director, since 18 Sep 2025); Sramani Institute (Additional Director, since 15 Feb 2023).
Subrata Kundu was first appointed on 12 Jan 2012 as Director at Keyline It Solutions Private Limited. The most recent appointment on record is 18 Sep 2025 at Thinkai Business Solutions Private Limited.
Subrata Kundu held 5 earlier board appointments: Keyline Technologies Private Limited (Director, 18 Apr 2012 to 05 Jun 2014); Reach Dredging Limited (Director, 31 May 2012 to 05 Jun 2014); Keyline E-Commerce Private Limited (Director, 24 Apr 2012 to 05 Jun 2014); Keyline It Solutions Private Limited (Director, 12 Jan 2012 to 05 Jun 2014); Rashmi Manthan Dredging & Infrastructure Private Limited (Director, 13 Jul 2012 to 05 Jun 2014).
The current boards of Subrata Kundu's companies include Sharmista Kundu (Keyline Digitech Private Limited), Joydeep Rakshit (Thinkai Business Solutions Private Limited), Rakesh Kurakula (Thinkai Business Solutions Private Limited), Amalesh Das (Sramani Institute), Asit Kumar Mitra (Sramani Institute), Cevoor Radhakrishnan Sathyanarayanan (Sramani Institute), among others.