The authorised foreign adoption agency which was overseeing her case in the US, Holt International, submitted four follow-up reports to the Child Adoption Resource Authority (CARA) in India since her adoption on July 8, 2016.
These reports describe her progress and repeatedly mention she was "adjusting well" in her new home and appeared to be "secure and comfortable" in her the surroundings.
One of the reports quotes her mother as saying that the child was "perfect for the family".
However, these assessments also note that she displayed "eating concerns".
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Sherin had gone missing on October 7 and the police in the Texan city of Richardson had earlier this week confirmed her death after over a fortnight of searches.
Her father Wesley Mathews, 37, was re-arrested on Monday and charged with first-degree felony injury to a child due to a conflicting statements to police.
The social worker who visited Sherin Mathew's family for follow-ups records that "eating has become more and more challenging for the family". "She likes to eat food outside but not at home".
The fourth, and the last report before Sherin's death, notes, "We discussed several different strategies that may be helpful" and that "additional mealtime strategies are needed to break this cycle and avoid more serious long term eating concerns".
The social worker also recommended "webinars and other resource for feeding issues in adopted children that may be helpful in developing different strategies for Saraswati's (as she was known before her adoption) feeding concerns".
Her father also told the police the girl was malnourished when she was adopted and needed to eat whenever she was awake to help her gain weight. Sherin was about three-feet tall and weighed just 22 pounds (10 kgs).
The girl was born on July 14, 2014 and was surrendered by a parent in Gaya, Bihar. She was sent to an orphanage, Nalanda Mother Teresa Anaath Seva Ashram, which is now shut, the CARA CEO added.
"Apart from Sherins eating habits, there were no concerns. The post-adoption follow up was carried out properly," he told PTI.
There are certain commitments which a receiving country and a sending country have to give as per the Hague Convention and in this case the US has been fulfilling those requirements, he added.
"There can be aberrations but that doesn't mean there is anything faulty in the system."
He said the reports submitted to the CARA were detailed and spread over 5-6 pages, each of them carrying 4-5 photos of the child.
These were submitted to CARA on September 17, 2016, October 21, 2016 and then January 11 and July 13 this year. Each of these reports were notarised by the state of Texas.
As per CARA's adoption regulations, the country receiving the child has to submit four reports in the first year after the adoption and two reports in the second year.
Kumar told PTI that the authorised foreign adoption agency had the recognition of the nodal body for adoption there -- the US Central Authority for Hague Adoption.
The submissions also describe how Sherin went on holidays with her extended family in Houston and spent some time in Dallas. The photos in the fourth report also show her cutting a cake at a party.
Her adoptive parents are overseas citizens of India.
The nationality by birth of the father, Wesley Mathews, is Qatari and that of the mother, Sini Mathews, is UAE. They are both US citizens.