The term Gotra broadly refers to people who are descendants in an unbroken male line from a common male ancestor.


The Kayastha Community in India is spread thin into various states. The easiest identification is the last (surname) name. 


North India  (UP, Delhi)
Srivastava, Mathur, Saxena, Bhatnagar, Nigam, Asthana, Kulshreshtha, Gaur, Ambastha, Karna, Suradhwaja, Balmiki. (Last two are rarely found)


Bengal:
Sen, Kar, Das, Palit, Saha, Dutt/Dutta, Bose, Ghosh, Pal, Dey. Ray, Sarkar, Chudhry, Nag, Som, Mullick, Majumdar, Munshi, Roy, Chandra, Guha, Vaidya, Nandy, Nandan, Sinha, Rakshit, Ankur, Nath, Biswas, Dhar, Bhadra, Sarbhan, Varman, Bhava, Mitra, Gupta, Kundu, Bhadradhar, Vishwasu, Dev, Adhikari, Patwari.
Orissa:Patnaik, Kanungo, Das, Bihiyar, Mohanti, Naidu, Pataskar.
Assam:Barva, Chakravarty, Baid, Mahanti.

Madhya Pradesh:Srivastava(also Khare), Saxena, Gaur, Asthana, Khare.
Gujarat:Chandraseni Kayastha Prabhu, Mehta, Vallabhji, Balmiki, Surajdhwaj, Vallabhi.
South India:Mudaliar, Naidu, Pillai, Reddy, Bal, Karnik, Raman, Rao, Menon, Nair, Nayyar, Raju.
Goa, Daman, Diu:Davane, Keelen, Pathare.
Sindh Province:Alim, Fazil, Qamil, Advani.


Some ALS commonly used by Saxena – Johry, Hajela, Adholia, Raizada, Kodesia, Kanungo, Bartariya, Bisaria, Pradhan, Kamthania, Darbari, Rawat, Saharia, Dalela, Sonreksha, Kamojia, Agochia, Sinha, Moria, Johri

ALS commonly used by Mathurs are – Saharia, Kataria, Kakrania, Dewariya, Dilwariya, Tawakaley, Rajauria, Nag, Galgotia, Sarwaria, Andley(Endlay), Ranoria.

Bhatnagar’s main ALS are – Dasania, Bhatania, Kuchania, Gujaria, Bahliwal, Mahiwal, Sambhalwed, Barsania, Kanmaujia, etc (Total ALS are 84).

Nigams have the following prominent ALS – Kanungo, Akbarpur, Akbarabadi, Kanungo ghatampuri, Chaudhry, Phaphund, Kanungo badha, Kanungo jaipur, Munshi ghatampuri, etc.

Shrivastavas common ALS are– Verma, Sinha, Aghori, Paday, Pandia, Raizada, Kanungo, Jagdhari, Pradhan, Beohar, Raja Surajpura, Tandwa, Vaidya, Barwaria, Choudhary, Raja Sandeela, Deogaon. It may be seen that some ALS are been usaed b more than sub-sects of Kayasthas- Verma, Sinha, Kanungo, Raizada,  Choudhary. Now a days Sinhas or Vermas are found in other castes also.


Bihar:
Srivastava, Ambashtha, Karna, Mathur, Bhatnagar. Other surnames/ALS used are – Sinha, Pandeya, Pandia, Kanth, Das, Sahay, Samaiyar Gayasen, Verma etc.
Punjab:Govil, Lahiri, Hajela, Raizada, Vidyarthi, Choudhary, Johari, Rawat, Bisaria, Sinha, Nagpal, Gotriy Kayastha, Kashyap, Bakshi, Dutta.
Rajasthan:Gaur, Mathur, Pacholi, Srivastava Guttu, Nandan, Sarbhan, Phuttu, Mavekadanvas, Sambhare, Bhatnagar, Shastri, Prasad.
Tamilnadu:Tamil Canara, Kayastha, Naydu, Pilley, Menon.
Andhra Pradesh:Telugu Kayasha, Naidu
(Note: In Hyderabad, Kayasthas are in abundance and they are Mathurs, Srivastava, Nigams, Saxenas, etc as in North India. They are all Urdu speaking)
Maharashtra:Chandra Seniya Kayastha Prabhu(CKP) surnames used are – Thackeray, Pathare, Pathekar, Karkhanis, Pharnis, Polanis, Vanis, Hazirnarsis, Mokasi, Chitnavis, Kotnis, Chitre, Gupte, Mathrey, Deshpande, Karore, Donde, Tamhane, Dighe, Sule, Raje, Sangle, Mohite, Tungare, Kulkarni, Shreedh, Pradhan, Jaywant, Wamanraje, Pharnase, Apte, Khyadya, Gadkari, Trivakraje, Adhikari, Samarth, Dalvi, Deshmukh, Chowil, Nadkar, Dawalkar, Sowankar, Kulawkar, Otarkar, Kharulkar, Kivalkar, Medhekar, Khadelkar, etc.