You can email him directly at:
[admin (at) subhojitdasgupta (dot) net]
You can Click Here to email him.
Phone: (00-91) 98200 32972
IMPORTANT : If the phone is busy on a call & you get to Voice-Mail,
please make it a point to leave your voice-message with your
Name and Contact Number clearly mentioned. Additionally a text message with your contact details can also be sent to this number.