The arguments, prior to the final judgement of the case, is likely to continue for several days.
"The phase of arguments, meaning summing up the entire case or the assessment of the evidence, marks the step prior to the final judgement in a criminal trial," explained noted criminal lawyer J.P. Mishra.
"The prosecution will justify how the charges against the accused are proved and the defence lawyers will counter it," said Mishra.
Keeping in mind prime accussed Ajmal Kasab's repeated denial of thecharges, the Special Public Prosecutor Ujjwal Nikam could have a tough time ahead to prove him guilty.
Along with Kasab the fate of two Indian Lashkar-e-Taiba (LeT) operatives Sabahuddin Ahmed and Fahim Ansari are tied with the case.
The accused were arrested in connection with the terror attacks in Mumbai on Nov 2008.
Kasab was the sole surviving terrorist among the ten attackers who had come into Mumbai from the sea.
The final judgement of the case will come come 10 months after the attacks which lasted for three days.