Dear Sir,
If you have not entered the shop then immediately issue intimation by all reconginsed modes and ask him torefund the
advance amount paid, please site strong reasons for your cancellation. Legal notice should be given. For draft notice write to my
e-mail kalaskarnetra@gmail.com with copy of your rent agreement.
Do you registered that Agreement or executed before notary?
Disclaimer : This answer is based on information given by you hence, It is just opinion of Lawyer. For specific answer you have to give details and facts and choose the Lawyer of your choice.