Complain to director of education.  In most cities DoE is collector.

You have to give written intimation 

mere verbal information is not sufficient 

pay the school fees demanded and obtain TC 

Hello,

1. You must issue a legal notice to the school seeking issuance of the transfer certificate  and refund of the caution deposit. In the notice you must state that you had informed the school over the phone about your decision to withdraw your son from the school and the school was agreeable at that time. 
2. Apart from sending the notice, lodge a complaint with the Education Department of the State regarding the unjustifiable steps taken by the management of the school.

You can issue a legal notice demanding the transfer certificate.

Let them make their demand in writing after which you can drag them to court of law for their illegal demands.

Their demand for 6 months tuition fee during lock down period is unjustified and against the laws of the government in this regard.

You consult a lawyer and isue a legal notice immediately  as suggested.

You can complain to educational department as well as file a case before consumer court

Issue notice to the school seeking the TC, if they fail to respond you can lodge complaint with the DEO followed by file complaint against the school authorities.

Inspite of the  above if they fail to honor your request, you can file writ petition seeking direction against the school.

- Under Section 5 (3) of the Right to Education Act, the transfer certificate is to be issued by head teacher immediately, and the head teacher will be liable for disciplinary action if the transfer certificate is not issued.
- Further , the Education Department has directed all schools not to stick to the condition of getting the school leaving certificates from students before giving admission to them.
- Hence the school is bond to issue transfer certificate to your son legally.

- You should give a written application before that school for getting transfer certificate , and if refused then lodge your complaint before the Education department of Haridwar. 

1. You may prefer to make written complaint to the ward Education Inspector about the events and refusal of previous school. You may request him to direct the school to issue "transfer certificate".

Please approach Inspector of School and Education officer of your area and make complaint in writing expressly for the problems faced by you.

You can send writen application and via email too that have verbal informed that you're going to change your son's school and not attend online school so kindly issue TC or else will make complaint to education minister and education department of district and state.

A criminal complaint can be lodged against the school. A writ petition in the high court must be filed for such an arbitrary and illegal behaviour wherein your child's future is at stake.

File a complaint against them in the education department and the affiliating agency 

1. The security deposit if deposited is to be returned mandatorily once the students takes transfer or completes the education.

2. The Transfer Certificate i again the school is bound to issue which has no nexus with the fees, if any, renaming due.

3 Now if you do not get the problem resolved soon then file a writ petition in high court. 

you may write a complaint to the concerned District Education Officer (D.E.O). 

You can file suit against school before consumer forum against their inappropriate demand of fees not refunding caution money.

Dear Sir/Madam,

You are suggested to serve the legal notice to the school management and then file the case.