Buddy you did not mention for which subject of VLSI exam paper you are looking in Centre for Development of Advanced Computing (C-DAC) here I will get the details so that you can have idea.

Here are the various subject which come under it please have a look

ASTRA - Innovative Intellectual
Property Solutions
Automatic Meter Reading System
Bio-Medical Instrumentation Board
Biosmart Access
Bio-Store Processor Board
Blackbox
Bluetooth Enabled Handheld Reader
Consumer Data Concentrator (CDC)
Consumer Premises Equipment (CPE)
Contactless Smart Card Products using E-Smart Engine
Data Transfer Unit (DTU)
Dual Interface RFID Reader, DIR100
ePrahari
ER922 Development System Board, ER922DSB
eSmart Reader
HF RFID Proximity Reader, RBR100
Radiation Monitor Board
RFID Based Access Control System
RFID Based Attendance System
Sarthi
SMS Based Authentication in RFID
Surbhi
TARANG Digital Programmable
Hearing Aid
UHF RFID Reader - LR400
Unified Electronic Controller for Off-Highway Dump Trucks

Address:-
Centre for Development of Advanced Computing (C-DAC)
43 Siddhnath Complex,Bhuyangdev Cross Road, Sola Road,Ahmedabad-61.
Sundervan Society, Naryanpura
Ahmedabad, Gujarat 380063
India

Phone:-
+91 99240 11033