Dear Ritesh,
Excellent, thanks for sharing a very useful ppt on domestic enquiry.
One point I would like to emphasis here is that, the copy of the charge sheet can also be sent to the residential address under Certificate of Posting alongwith the Regd. A/D. Post, which any how the the postman has to handover at the residential address. The MR of the Company can present the proof of sending it by Certificate of posting in the Domestic Enquiry, which is a valid document.
regards/satish