The numerous letters we receive from school head-masters, students and well-wishers serve as a form of evaluation of our activity. Below are excerpts from some of these letters (translated from Marathi).

Testimonials from school head masters

From school head masters:

Sri Shivshambho Vidyalaya, Khalad, Taluk Purandar, District Pune:
It is very admirable that you are running this organization to teach science through experiments to rural school children without a fee or remuneration, especially at the schools which are unaided by the government.

New English School, Nimgaon-Khairi, Tal. Srirampur, District Ahmednagar:
Vidnyanvahini's mobile lab seemed to us like a "Gate Way of Science." It has given the students a feeling of "Handle and Learn" science through experiments.

Zilla Parishad High School, Nagarsoga, Tal. Ausa, District Latur:
This work for creating a scientific attitude among the students is matchless. Such programs can motivate other organizations too.

Nutan Madhyamik Vidyalaya, Vadki, Tal. Haveli, District Pune:
The choice of experiments was motivated by a desire to create interest among the students. The explanations were very lucid and easy to understand.

New English School, Bherdapur, Tal. Srirampur, District Ahmednagar:
We learned a novel point of view from your experiments. We experienced that after your last visit, students wrote clear answers to questions on the exam by drawing appropriate figures.

Sane Guruji Vidyalaya, Kharpudi, Tal. Khed, District Pune:
The Vidnyanvahini's experiments created interest in science among the students and made it easy for them to understand principles of science. The project is useful from scientific point and is enlightening for the teachers.

Sarole Madhyamik Vidyalaya, Sarole, Tal. Bhor, District Pune:
This is an excellent pathfinder project for students as well as teachers. The organizers have obviously put lot of efforts into it. It is being run very well even without any assistance from the government.

Bhausaheb Raut Vidyamandir, Kashele, Tal. Karjat, District Raigad:
The students will certainly benefit from watching the experiments from close proximity and your cooperation. Even the teachers found the event very beneficial.

Trimurti Vidyalaya, Tinhewadi, Tal. Khed, District Pune:
There is no doubt that your activity helps create science-oriented citizens of our country.

Brahmanand Vidyalaya, Bhilawadi Station, Tal. Tasgaon, District Sangli:
Both teachers and students found the experiments very instructive. The children learned science through playful humour and by asking questions.

Apti Vidyalaya, Apti, Tal. Javali, District Satara:
Experiments were demonstrated to the students through many a modern instrument. In addition, audio visual media were judiciously used for getting across useful information.

Pendhri Panchakroshi Vidyalaya, Pendhri, Tal. Deogad, District Sindhudurg:
Yours is a lion's share in adding to the knowledge of our students and teachers alike.

Madhyamik Vidyalaya, Yadavwadi-Hargude, Tal. Purandar, District Pune:
Vidnyanvahini used today a different format. In a short time, they trained some of our students as instructors and they in turn explained the experiments like teachers to their peers. This is a very novel method especially for students who are not well-versed in use of equipments.

Testimonials from students

From students:

Yasmin, Chhatrapati Shivaji Vidyalaya, Veet, Tal. Karmala, District Solapur:
You might wonder who 'Yasmin' is. I am a student from Shivaji Vidyalaya of Veet. I greatly benefited from the experiments you showed us. You told us you would return in January, 1997. Please write to me and tell me what day you will arrive so I will wait till then.

Kishore Shinde, New English school, Ghotawade:
What are cosmic rays and what is their connection with atoms?

Dnyaneshwar Kamathe, Shivshambho Vidyalaya, Khalad:
You gave us a lot of information about rainbows and had asked us to observe rainbows and answer a question you had posed. On 6-8-97, I saw a rainbow in the morning and found it contained red, light yellow, Green, blue, light orange, indigo and violet colours. I want to be a great scientist and make India no. 1 in the world.

Seema Jagtap, New English school, Pimple:
You have been visiting our school for two years and letting us perform various experiments. I especially liked the experiments in chemistry on neutralization, phosphorous flame, and ammonia fountain. Will you please tell me why the sun can heat earth with its rays but when we keep rising in the atmosphere the temperature keeps falling?

M.S. Kadam, New English School, Bhamburde:
What is litmus paper made of and what does the litmus solution contain?

Sanjay Vadhai, Kasat, Tal. Varora, Dist. Chandrapur:
You told us to determine the densities of water, oil and kerosene. I mixed these three liquids at home and found that water is more dense, then comes oil and finally the kerosene. I used linseed oil for my experiment.

Yuvraj Shinde, Naravir Tanaji Vidyalaya, Donje:
We performed several of the experiments you taught at home and got results. The postcard and a coin on a glass, covering a burning candle by a glass, etc. are some of those.

Testimonials from supporters and well-wishers

From supporters and well-wishers:

Vibhavari Sawant, Samarth Vidyalaya, Kolhapur:
”... खूप गोष्टी नव्याने समजल्या. आमच्या ज्ञानात भर पडली . सर्व व्याख्यानांबाबत बोलायचे झाले तर माझ्याकडे शब्द अपुरे आहेत. प्रत्येक वक्ता आपल्या ज्ञान आणि अनुभवाची शिदोरी आम्हाला वाटत होते. एवढ्या अनुभवी, ज्ञानी मंडळीना पाहून मुलांसोबत आम्हालाही नवा दृष्टीकोन लाभला...” (पूर्ण प्रतिसाद)

Baba Amte, Kasaravad on Narmada, District Badwani, M.P.:
These are the times filled with opportunities and challenges... Science is changing very rapidly. Rural youth cannot afford to sit back and watch. But he is helpless. Selfish politicians have kept them on the sidelines. Vidnyanvahini is forging ahead to extricate this unholy, disgraceful and unpardonable situation in respect of science education in rural areas. They are tackling a problem which no one has taken up before, and they are doing so with a fired up mind and a cool head.... My best wishes are with them.

B.K.Naik, CEO, Zilla Parishad, Solapur:
Any social inequity is unacceptable. Hence, Vidnyanvahini tries to reduce educational inequity by taking a mobile science lab to remote and inaccessible schools so that children can see and perform science experiments and develop a scientific outlook. The organization's activities are definitely commendable... I am also confident your plan to start a science center in a rural setting to serve as an exploratory for children, a museum for adults and an information cell for farmers will succeed.

Dr. N.W.Kale, Srirampur:
I admire your goal of trying to eradicate exploitative superstitions from rural maharashtra. Even in my medical profession, I come across superstitions about science and I try to eradicate them whenever I can. I will like to cooperate with you as much as possible.

D.G.Dhole, Vikas Charitable Trust, Kirloskarwadi:
Thank you for bringing your mobile lab to our schools at our request between 9 to 13 February, 1999. many students learned science through simple yet interesting methodology. All students were very excited by your presence. There is no doubt you have contributed greatly in helping remove superstitions. Please accept a Rs. 2,500 draft enclosed as a small token of our gratitude.

Secretary, "Aapanach", Pune: Thank you for visiting our street children's schools several times between March 3 to April 5, 2000 and giving our students very useful information. This has helped create an interest among the children in education in general and science in particular. We hope for active cooperation in our future activities as well from you.

Roxana Kalyanavala, Bharatiya Samaj Sewa Kendra, Pune:
The programme given by Vidnyanvahini's experienced, devoted and excellent staff for children in our sponsorship programme was a grand success. Many concepts in mathematics and science were cleared and they love the subjects rather than fear them. We appreciate your help in promoting our work for the benefit of the society.

R.S.Thakur-Desai, Executive Secretary, Vijayadevi Shirke Educational Trust, Pune: I was able to watch your work at the Alandi Mhatoba school. The impromptu thoughts expressed by the students at the end of the programme represented a genuine acknowledgement of your work since they were a mirror reflection of the children's curious minds.

Sir Ratan Tata Trust and Navajbai Ratan Tata Trust on the visit by Vidnyanvahini to schools in Nandurbar District:
Science on wheels: in a bid to bring new ideas and resources into a district ranked lowest in literacy and Human Development Index in the state of Maharashtra, the Trusts organised a six-day science session in February 2012; Vidnyanvahini brought in their mobile science lab to give students and teachers an experience they will not forget.