Indigo Airlines — Wilful damage to check in suitcase

Address:	Mumbai City, Maharashtra, 700046
Website:	www.goindigo.in

I travelled by goindigo flight, PNR number, GE8QRN. while collecting the suitcases, i found that both my suitcase was severely damaged. locks of both the suitcases were broken, trolley was also broken. this was a deliberate act, in an attempt to take out the content. i informed the duty officer at the airport who reluctantly took my complaint. i sent a complaint to indigo also but they have not even acknowledged my e mail. what options do i have now?