Sunil,
You are right , you can go for filing complaint under IT Act in Cyber crime. I have read one such case where complaint filed in IT Act put immense pressure on opposite party and husband was able to convict wife.
Refer to link
https://ipc498a.wordpress.com/2010/05/20/the-pune-techie-lands-in-the-498a-morass/
https://www.498a.org/forum/viewtopic.php?f=41&t=6229
Try to contact him by any means for more help.
I have nt gone through entire act but following should give you head start,
43. Penalty for damage to computer, computer system, etc.
If any person without permission of the owner or any other person who is incharge of a computer, computer system or computer network,-
(a) accesses or secures access to such computer, computer system or computer network;
(b) downloads, copies or extracts any data, computer data base or information from such computer, computer system or computer network including information or data held or stored in any removable storage medium;
(c) i ntroduces or causes to be introduced any computer contaminant or computer virus into any computer, computer system or computer network;
(d) damages or causes to be damaged any computer, computer system or computer network, data, computer data base or any other programmes residing in such computer, computer system or computer network;
(e) disrupts or causes disruption of any computer, computer system or computer network;
(f) denies or causes the denial of access to any person authorised to access any computer, computer system or computer network by any means;
(g) provides any assistance to any person to facilitate access to a computer, computer system or computer network in contravention of the provisions of this Act, rules or regulations made thereunder;
(h) charges the services availed of by a person to the account of another person by tampering with or manipulating any computer, computer system, or computer network,
he shall be liable to pay damages by way of compensation not exceeding one crore rupees to the person so affected.