Know your GOTRA.

Gotra means Clan esp. in Hindu society. It refers to people who are descendants in an unbroken male line from a common male ancestor.

Can I marry a person of same gotra?

According to Hindu religion, same-gotri marriages are prohibited. This prohibition is because they believe that the girl and the boy have common ancestors that is why they are like brother and sister. No one can marry her sister or vice versa. Gotra decides your lineage. If you are a Hindu then why are you thinking of marrying a person from same gotra. I hope you would not like to marry a girl who is your sister.

Scientifically, it has also been proved that marriage between persons having the same lineage produces babies having several genetic disorders and diseases. So science also believes the same way as Hindu Rishi Munis have written long before. Think how knowledgeable were our ancient Rishi. They were great biologists. They have told us long before what science is inventing today! (yahoo answer)

Gotrya can be identified with your surname. Below is the detail information about Gotra and surnames that includes. (source:-wikipedia)

Sagotri are the people having same gotra. In the hindu community marriage with sagotri is socially unacceptable. In past marrying with the sagotri of upto three generations of mother side was also unacceptable. But now, there is a saying "budamawaliko ghar jogaunu-mawali ko thar jogaunu" means do not marry with family member of mother's maternal parents - do not marry with anybody having same last name of mother's parents"

ANGIRAS

Joshi, Sedai, Saunak

AGASTI

Dhungel

ATRI

Chapagai, Wosti, Mishra, Khatiwada, Ojha, Adhikari, Gotame, Kshatri Malla, Pahari

ATREYA

Paudel, Devkota, Pokhrel (pani), Kalikote, Sharma, Aryal, Sigdel, Bagale Thapa

UPAMANYU

Mainali, Dhakal, Bartaula, Bhatta (Duwal), Pandey

KASYAP

Shah, Sahi, Rayamajhi, Ghimire, Godhar (Thapa), Kathayat, Gartaula, Adhikari (Bhadare, Khilchine and Kaubali), Bogati, Budhathoki (Sodari), Badaal.

* Some Newar Joshis are Kashyap, some are Bharadwaj especially from Bhaktapur (source: a reader's comment)

KAUDINYA

Achraya, Neupane, Pakurel, Paneru, Sapkota, Satyal, Marashini, Parajuli, Baskota, Trital, Khadka, Thapa Gamle and Bagale, Joshi

(Some Sapkota are Kautinya gotra)

KAUSHIK
Regmi/Gaudel, Khapatari (Khadka, Bistha, Budhathoki and Basnet), Khadka, Bidari, Rimal, Lamichhane, Dhungana, Dhital, Phuyal, Tiwari, Majhi, Luitel, Pudasaini, Baniya, Raghubansi, Bhandari, Bastakoti.

GARGA

Bastola, Lamichhane, Bhurtel, Gajurel

GAUTAM

Chanda, Tripathi

GHRITAKAUSHIK
Sutar, Karki, Baral, Pandit, Khanal, Nepal, Baraily

MANDABYA
Bajagai, Gyawali, Bajhai

DHANANJAYA
Kunwar, Humagai, Rijal, Karki, Thapa, Pangeni, Basel, Kukurkote, Dhamala, Guragai, Khulal; Basnet, Bhusal, Khulal (Budhathoki), Gauripitri.

PARASAR

Marhattha, Karki, Kattel, Dev, Raila

BHARADWAJ
Chaulagai, Subedi, Thapaliya, Panthi, Upadhaya, Wagle, Lohani, Pantha, Adhikari, Dudhpokhrel, Siwakoti, Devkota, Niraula, Jamarkattel, Pandey, Rajopadhyay, Maski Rana

MAUDAGALYA
Timsina, Timilsina, Koirala, Upreti, Mudula, Karki, Rume, Kuinkel, Simkhada, Belkadhi

VASTH
Rana, Lamsal, Kunwar, Dahal, Ruphakheti Dahal.

BASISTHA
Suyal (garthi), Raut, Bhattarai, Suyal (Thapa), Dwadi, Thangsine, Bhandari, Kharel, Chalise, Mudabhari, Gaire, Kharel, Thansinge Bhandari, Paneru

*Some Paneru are Kaudinya gotra.

BISHWAMITRA

Bhatta ( Alina, Duwadi, Nirbansi, Rayal,  Rai, Mukhiya (Sunuwar)

If your gotra is not here or is not correct please comment below. We just published the information we were able to find.