Mousumi Chowdhury

Call 2014

Mousumi has a very busy practice in immigration, family and regulatory law and welcomes all instructions within her expertise. She has completed her Public Access training and is happy to take on cases from lay clients in suitable matters.

Described by the Partner and Head of the Regulatory team at Blake Morgan LLP, a leading 500 tier firm, as ‘impressive’, Mousumi is the ideal choice of counsel to instruct in the field of regulatory law.

In January 2020 Mousumi accepted the position of Visiting Lecturer at Westminster University and since then has led the teaching on the module Child Protection Law and Policy for three academic years now and in September 2021 began delivering the Family Law module to third year law students. Mousumi is currently supervising an LLM student in their dissertation focused on family law: private children proceedings.


Mousumi recently completed a 14 month secondment in a Tier 1 500 ranked large law firm acting on behalf of regulatory bodies. During this time, Mousumi was involved in a number of investigations and acted as an advocate on behalf of regulatory bodies before regulatory panels and in the High Court. She is instructed in interim order extension hearings in the High Court and before regulatory panels such as the HCPC.

Mousumi is recognised as a determined and client focused advocate who specialises in advice, representation and advocacy in all areas of immigration, asylum, nationality and citizenship, bail, human trafficking, deportation and detention cases. She acts for clients from a number of countries, including Nigeria, Gambia, Ghana, Brazil, Turkey, India, Iraq and Cameroon. She is instructed to appear in courts and tribunals at all levels up to and including the Court of Appeal.

Described by one solicitor as ‘an extremely diligent advocate whose attention to detail is exemplary’ Mousumi’s ability to engage judges and opposing counsel in a respectful manner allied with the unwavering and tenacious nature of her advocacy has led to successes both at the First-tier Tribunal and Upper Tribunal Immigration and Asylum Chamber and makes her a clear choice for solicitors in challenging cases. She also has experience of representing the Secretary of State for the Home Department at the First-tier Tribunal.

Notable Immmigration cases

June 2022: AAC -v- SSHD

Judicial review permission hearing at the Administrative Court in the Royal Courts of Justice. Mousumi represented the Claimant in a case concerning the grant of British Citizenship, permission for judicial review was granted.

June 2022: GK -v- SSHD

Mousumi represented the Appellant at the First-tier Tribunal in an EEA direct family member case where relationship was disputed. The appeal was conceded by the Home Office almost immediately at the beginning of the hearing.

April 2022: OWJ and GOJ -v- SSHD

Mousumi represented the Appellants in a case where the Home Office alleged there had been fraudulent deception 12 years prior in the obtaining of indefinite leave to remain by the Appellants and sought to revoke the indefinite leave to remain. The appeal was allowed.

April 2022: TJ -v- SSHD

Mousumi represented the Appellant at the First-tier Tribunal in a human rights application on the basis of his family life with his step-son from a former relationship. The appeal was allowed.

January 2022: AS and US -v- SSHD

Mousumi represented the Appellants, who were Albanian nationals in an indefinite leave to remain revocation case where the Home Office alleged one of the Appellants had committed fraudulent deception to obtain indefinite leave to remain.

January 2022: MLD -v- SSHD

Mousumi represented the Appellant at the First-tier Tribunal in a case where the Appellant sought a residence card on the basis of being a family member of an EEA national.

December 2021: JMK -v- SSHD

Mousumi represented the Appellant, a national of Lebanon, in a human rights case where a key reason why the Appellant could not return to his country of origin was due to his health reasons.

October 2021: MO (and six dependents) -v- SSHD

Mousumi represented a family who had made an EEA Zambrano case to enter the UK on the basis of a British child. This was a complex case where there was a biological mother, siblings, the mother’s partner and his children from a previous relationship all seeking entry on the basis of their relationship with the British citizen child and the involvement they had in her upbringing.

October 2021: AYS -v- SSHD

Mousumi represented the Appellant seeking entry clearance to the UK as the EEA family member of an Irish national. There were multiple hearings in this matter (due to technical difficulties) and at the last hearing, the appeal was allowed in open court.

September 2021: MMK -v- SSHD

Mousumi represented the Appellants in a settlement visa application. The Sponsor had significant health issues and the appeal was allowed in open court.

February 2020: IB -v- SSHD

Mousumi represented the Appellant in hearings at the First-tier Tribunal (there were multiple hearings in this case due to its complexity). The matter concerned a child settlement visa where the Appellant’s parent had been granted entry clearance but she had not been due to the ECO not accepting that ‘sole responsibility’ by the parent had been proved despite the evidence provided. At the last hearing in this matter, the Judge allowed the appeal in open court.

January 2020: OOO -v- SSHD

This appeal related to the Article 8 family life of an Appellant who was the step-father to a British Citizen child and whether insurmountable obstacles existed in the Appellant’s relationship with his partner continuing if they had to leave the UK. The appeal was allowed in open court.

Mousumi accepts instructions in all areas of family law, including: financial remedy proceedings, private children, non molestation and occupation order applications and care proceedings.

Solicitors and clients have described Mousumi as well-prepared, articulate and sensitive to the nuances of a case and dedicated to ensuring a matter is resolved with the least number of hearings as possible. She is regularly instructed in fact-findings and final hearings and is described by a leading firm who instruct her as having a ‘personable and endearing personality and easily gains the trust of clients with whom she works. We have certain clients who prefer to work with her exclusively.’

Mousumi’s previous experience of working with the National Centre of Domestic Violence has meant that she is particularly well-equipped to assist with vulnerable clients. Mousumi’s knowledge of family law led to her being invited by Westminster University to teach the subject to third year law students.

Mousumi is also a volunteer at the organisation ‘Not Beyond Redemption’ where she helps women who are in or have left prison and assists in re-establishing and regenerating the fundamental relationship between mother and child. She is currently advising in respect of immigration and family proceedings in a case where a mother who is serving an 11 year prison sentence for murder is seeking to re-establish contact with her child.

Notable Family cases

June 2022: HP -v- DP

Three day fact finding hearing at the family court sitting at the Royal Courts of Justice where Mousumi represented the Respondent Mother in a case where the Applicant Father was seeking to re-establish contact with a step-child following the parties’ divorce.

May 2022: CA -v- MMS

Mousumi represented the Respondent Mother, a serving policewoman in private children proceedings.

May 2022: MPS -v- D -v- D

Mousumi represented the Metropolitan Police Service at a disclosure application directions hearing at the Central Family Court in a case involving allegations of abuse made by a child against the Applicant Father.

March 2022: AM -v- SM

Mousumi represented the Applicant Wife in a divorce trial; decree absolute was granted.

August 2021: CVEB -v- B

Mousumi represented the Applicant Father, based in Brazil, seeking to establish indirect contact with his child, who had to be located in the UK.

March 2021: NP -v- JP

Mousumi represented the Applicant Husband in a final hearing in a financial proceedings matter and successfully argued the Applicant’s Husband’s debts were marital debts given the parties’ outgoings throughout the duration of their marriage.

February 2021: NA -v- SA

Mousumi represented the Applicant Mother in private children proceedings in a case with jurisdictional issues as the Respondent Father was residing in Turkey.

February 2021: SF -v- JF

Mousumi represented the Applicant Husband in a financial proceedings matter and successfully argued he was entitled to 50% of the ‘Right to Buy’ grant despite not having his name on the tenancy agreement at the time of the grant.

March 2020: JJ -v- KM

Final hearing in private children proceedings where Mousumi represented the Applicant Father and successfully obtained both direct and overnight contact for him with his children in a case involving multiple allegations of domestic violence, neglect and issues of deportation.

Associations and Memberships

  • 2014 – 2016: LLM Legal Professional Skills, City University
    Commendation, 79%
  • 2013 – 2014: Bar Professional Training Course, City University
    Very Competent
  • 2010 – 2013: LLB Law, Queen Mary University
    First Class Honours

  • Lincoln’s Inn

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