Bhandari Automobiles — booking advance amount not refunded by company

Address: Kolkata, West Bengal, 700137

I had booked tata ace in march 2017 and paid an advance of rs.5000 vide chq no 000028 of bandhan bank which got debited in my account on 20.03.17. But due to changes in government policy with respect to environment. We had cancelled the booking.. Hence requesting company to refund the amount... Tried to contact sales team but all in vain.. I wrote to them via mail but no response received... Kindly help in getting the refund amount...