Kesari Tours — Not giving Refund

We had booked our f3 trip for Singapore Malaysia Thailand on December 2019
Which was scheduled on 15 th may 2020 ..but as we saw the pandemic situation in the country so we cancelled the trip on 15 Feb 2020 only since then we are approaching for Refund through several mails and calls but they are not responding at all as if we are nobody to them even after taking 2, 35, 000 in advance..and enjoying our hard earned taxpayers money..they have shutdown their offices and telephone lines are also not active
So please give us our entire money back with interest otherwise this matter will be treated legally..and refund will be along with legal charges.