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Kolkata Patent Office - EPBAX No. 033-23679101

Sr. No. Name Designation Phone No. E-mail
1 Sh. G. P. Roy DC
GL- E&G-Group-4
23675104
Extn.-2149
gautam.ipo@nic.in
2 Dr. Amitava Chakraborti DC
and HEAD OF OFFICE and Appellate Authority RTI
23671987
Extn.-2401
a.chakaraborti@nic.in
3 Dr. D. K. Chakrabarti DC
GL- E&G-Group-1
23674402
Extn.-2226
dilip.ipo@nic.in
4 Sh. Nirmalya Sinha AC,
GL- E&G-Group-3
23677830
Extn.-2815
nirmalyas.ipo@nic.in
5 Sh. Sanjay Bhattacharya, AC,
E&G-Group-3
Extn.-2304 bsanjay.ipo@nic.in
6 Dr. Sukanaya Chattopadhayay AC,
I/c DESIGN OFFICE
23671944
Extn.-2824
sukanya.ipo@nic.in,
controllerdesign.ipo@nic.in
7 Sh. Pramathesh Sen AC,
E&G-Group-4
Extn.-2412 p.sen@nic.in
8 Sh.Santanu Dey AC,
E&G-E&G-Group-4.

Extn.-2214
santanu.dey@nic.in
9 Sh. Sudip Jyoti Sahu AC,
Incharge - RECS Section
23674401
Extn.-2050
Sudip.ipo@nic.in
10 Sh. Madhurjya Thakur AC,
DESIGN OFFICE
Extn.-2410 madhurjya.ipo@nic.in
11 Sh. Soumen Ghosh AC,
GL- E&G - Group-2
Extn.-2307 soumen.ghosh@nic.in
12 Dr. Jitendra Kumar Pradhan AC,
E&G-Group-1
Extn.-2221 jkpradhan.ipo@nic.in
13 Sh. Sujoy Sarkar AC,
E&G-Group-3
Extn.-2816 ssarkar.ipo@nic.in
14 Dr. Sharmistha Ghosh AC
Incharge-RMID Section (RO-PCT)
23671946
Extn.-2073
sghosh.ipo@nic.in
15 Sh. Bhaskar Ghosh AC,
E&G-Group-1
Extn.-2218 bhaskar.ipo@nic.in
16 Sh.Jayant Anand AC,
Incharge- GPM Section and CPIO
23675092
Extn.-2072
jayant.anand@nic.in
17 Sh. Parijat Saurabh, AC,
E&G-E&G-Group-3
Extn.- 2303 parijat.ipo@nic.in
18 Dr. Abhijit Das AC,
E&G-Group-2
25300334 abhijit.d@nic.in

Delhi Patent Office - EPBX-011-25300200

Sr. No. Name Designation Phone No. E-mail
1 Dr. K. S. Kardam Sr JC
HEAD OF OFFICE and Appellate Authority RTI
28034310, 25300202 kardam.ks@nic.in
2 Sh. Hardev Karar DC,
GL- E&G -Group-1, ISA/IPEA
25300204 karar.ipo@nic.in
3 Sh. N. R. Meena DC,
E&G Group-1
25300207 nrmeena.ipo@nic.in
4 Sh. B. P. Singh DC,
GL-E&G-Group-3
25300205 birendrap.singh@nic.in
5 Dr. S. S. Singh  DC, In charge-GPM, CPIO 011-25300208  ss.singh@nic.in
6 Dr. Rajesh. Dixit DC,
E&G-Group-1 and -ISA/IPEA (PCT)
25300209 dixit.rajesh@nic.in
7 Sh. Ashok Kumar AC,
E&G-Group-
25300211 ashokkumar.ipo@nic.in
8 Sh. Naveen Mathur AC,
GL-E&G-Group-4.
25300296 naveen.ipo@nic.in
9 Sh. Kamal Goondli DC,
(SA) Information Technology
25301220 kamal.singh@nic.in
10 Sh. Saroj Kumar DC,
E&G-E&G-Group-4.
25300294 sarojkumar.ipo@nic.in
11 Ms. V.Rekha DC,
Information Technology
25300210 rekha.ipo@nic.in
12 Sh. Sameer Kumar Swarup DC,
Information Technology 
25301253 sameer.swarup@nic.in
13 Sh. P.S.Rao AC,
E&G-Group-4.
25300293 srinivasa.ipo@nic.in
14 Dr. Nilanjana Mukherjee AC,
GL-E&G-Group-2.
25300285 nilanjana.m@nic.in
15 Sh. Vinod Kumar AC,
E&G-Group-4.
25300244 vkumar.ipo@nic.in
16 Smt. Monika Yadav, AC,
E&G-Group-2
25300215 ymonika.ipo@nic.in
17 Dr. Kavita Taunk AC,
E&G-Group-1
25300216 ktaunk.ipo@nic.in
18 Dr. Usha Rao AC,
E&G-Group-2-GPM +ISA/IPEA
25300206 drusharao.ipo@nic.in
19 Sh. Vikash Kumar AC,
Group-1, Head RECS Section
25300286 vikash.ipo@nic.in
20 Dr. Umesh C. Pandey AC,
E&G-Group-1,Incharge Designs Office
25300223 ucpandey.ipo@nic.in
21 Sh. Ananat Prakash Srivastava AC,
E&G-Group-3
25300292 anant.srivastava@nic.in
22 Sh. M Buchi Babu AC,
E&G-Group-4.
25300315 mbbabu.ipo@nic.in
23 Ms. Bimi G. B. AC,
Head-RMID (RO)
25300235 bimigb.ipo@nic.in
25 Dr. Archana Gupta AC,
E&G-Group-1
  archana.ipo@nic.in
26 Dr. Shankar Dayal Bhatnagar AC,
E&G-Group-4.
24144517 bhatnagar.sd@gov.in

Chennai Patent Office - EPBAX No. 044-22502081-84

Mumbai Patent Office - EPBAX No. 022-2418251-24101144

Sr. No. Name Designation Phone No. E-mail
1 Sh. N.K.Mohanty DC, Head of the Office & GL (E & G, Group-3) 022-24153651 nk.mohanty@nic.in
2 Sh. N. Ramchander DC & GL (E & G, Group-1) 022-24156396 nrchander.ipo@nic.in
3 Dr. Amarendra Samal DC (CG Office) 022-24130744 asamal.ipo@nic.in
4 Sh. Vikash Sharma DC & GL (E & G, Group-4) 022-24156395 vikashsharma.ipo@nic.in
5 Smt. Namrata V. Kavle DC (E & G, Group-3) 022-24159195 nv.shinde@nic.in
6 Dr. Dinesh P. Patil DC & GL (E & G, Group-2) 022-24130755 dppatil.ipo@nic.in
7 Sh. Pinkesh K.Jain DC (E & G, Group-3) 022-24156394 pkjain.ipo@nic.in
8 Sh. Pankaj Borkar DC (E & G, Group-4) 0712-2542969 pborkar.ipo@nic.in
9 Sh. Yogesh V. Bajaj AC (E & G, Group-3) 022-24140145 yogeshbhajaj.ipo@nic.in
10 Dr. Ajay S. Thakur AC (E & G, Group-1) 022-24156392 ajaythakur.ipo@nic.in
11 Shri Vijay T. Doye AC (RMID & PCT/RO Section In-charge) 022-24130466 vijaydoye.ipo@nic.in
12 Dr. Ujjwala G. Haldankar AC (E & G, Group-2 & RECS Section In-charge) 022-24159196 ujjwalag.ipo@nic.in
13 Shri Kishor R. Kadbe AC (E & G, Group-3) 022-24159193 kishorkadbe.ipo@nic.in
14 Dr. Suhas R. Kulkarni AC (E & G, Group-1, CPIO & GPM Section In-charge) 022-24172945 (M) 9869263951 srk.ipo@nic.in
15 Shri Santosh K. Mehtry AC (E & G, Group-3) 022-24148161 smehtry.ipo@nic.in
16 Shri Mangesh L. Mokashi AC (E & G, Group-4) 022- 24144517 ml.mokashi@nic.in

Abbreviation

  • DC: Deputy Controller of Patents and Designs
  • AC: Assistant Controller of Patents and Designs.
  • GL: Group Leader (Head E & G)
  • E&G: Examination and Grant Section
  • Group 1: Chemistry and Allied Subjects
  • Group 2: Biotechnology, Microbiology and Allied subjects
  • Group 3: Electrical, Electronics & Related Subjects
  • Group 4 Mechanical Engineering and Other Subjects
  • RECS: Receipt, EDP, Classification and Screening
  • RMID: Record Management and Information Dissemination
  • GPM: General Patent Matters.
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