That answer, the strangest of all till date in this courtroom, set off a ripple of excitement, surprise and muted amusement among those present, including Accused No 1 Indrani Mukerjea.
'Dalvi, you are saying you asked a question, but don't remember the answer?' asks Pasbola incredulously. 'Yes.' 'You are lying.'
In the 25 odd days that he has appeared before CBI Special Judge Jayendra Chandrasen Jagdale, you have experienced the entire range of emotions just observing him. Everything from pity to irritation. To bafflement. And shock. You have scoured his face, gazed into his eyes, watched his expressions and body language, searching vigilantly for motives. And come away no wiser. Who is Shyamvar Rai? Does anybody know?
The Mukerjeas' former driver could remember every detail of Sheena Bora's alleged murder five years ago, including on what day he took Indrani to the beauty parlour, and the brands of liquor he bought, but was unable to recall anything subsequently or more recently...
Trepidation made its home firmly on his face on Thursday, announcing its presence with lines of anxiety and the repeated jumpy widening of his eyes.
Finally to end the dispute, Sharma threatened to show her shoes. Pasbola declared regally that he would like to forgo that particular honour. Sharma ignored him. Instead, she bent down, took off her shoe and triumphantly held her prize aloft, and said delightedly, "Yeh dekhiye! (Have a look!)"
Mekhail hopped off the bench in a hurry and turning his back to Indrani, stood at the window. Indrani ignored him too. Mekhail is getting married later this year. His mother will, of course, not be in attendance. Nor, of course, would he want her to be there, if she could.
It is becoming more and more apparent that Shyamvar Rai is like an onion. And a pretty pungent one at that. As layer after layer of his life gets peeled off, in full view of the court, new layers of his character are exposed.
Indrani chose at that moment to wave a folded chit from the accused enclosure. It distracted Bharti, who looked at her sharply for a split second before turning back to Pasbola. The chit was collected from Indrani and her lawyer Gunjan Mangla slipped it to Pasbola. He looked at it, quietly laughed in disbelief and continued with his cross examination.
Shyamvar Pinturam Rai and Pradeep Waghmare. Both erstwhile employees of Peter and Indrani Mukerjea. In the witness stand on Monday, Waghmare came across as a cheerful, straightforward man who is attempting to clamber his way towards prosperity. In the witness stand on Friday, Rai shed his customary jauntiness and broke down weeping, begging forgiveness from CBI Special Judge Jayendra Chandrasen Jagdale.
'Could the Khar police and the CBI have tinkered with the driver's call data records?' 'And did their fiddling with the information not make it that they were tampering with the lives of people that were in the balance as a result of this case?'
In the witness box, on bald embarrassing display, was not just Sub-Inspector Ganesh Dalvi, but the entire system of police investigation too.
Tuesday was the last that Courtroom 51 saw of Shyamvar Rai, accused No 3 and approver in the Sheena Bora murder trial. True to form, Rai's final hours in the witness box were rather acrimonious. His cross-examination at several points turned downright ugly.
Investigators in the sensational Sheena Bora murder case are not ruling out the "honour killing" angle after it came to light that both Peter Mukherjea and main accused Indrani allegedly disapproved of the "relationship" between his son Rahul and the victim.
Indrani, radiant in an immaculate white and gold salwar-kurta that matched the moment, her hair open, a bindi gleaming on her forehead, beamed placidly, fully enjoying this small minute of victory.
The question being silently telegraphed around the court room was: When did this happen? Wasn't this trial about Indrani murdering her daughter to prevent her from marrying Rahul Mukerjea, her husband Peter Mukerjea's son from his first marriage?
The attempts to unearth the document started getting more and more frantic. The clerks began to flip pages of files full of documents, some hand written, some bearing thick seals or multiple stamps, some in Hindi, some in Marathi. Several junior lawyers joined in, perusing different files and dockets. But in spite of the best of efforts the document was not to be found.
Indrani called her personal assistant Kajal Sharma from the UK, May 3, 2012, and told her she had to sign Sheena's resignation letter as if she was Sheena signing it. But she had to first practice the signature and send Indrani proof of her proficiency in signing Sheena's name before sending the letter off. Sharma said she was reluctant and told the court that she told Indrani as much, but Indrani demanded it of her.
If Pasbola seemed like he was testing Rai on his high school physics, Rai on the other hand, had relocated himself to a classroom of philosophy, offering beautifully inexact answers, arrived at after deep thinking.
After ten minutes no one could keep track of the legal team's questions on the geography of the route Sandeep Patil took on his Pulsar Bajaj motorcycle, on the morning of April 25, 2012. Not the judge. Or the onlookers. Least of all Patil.
Though on the face of it appeared Pasbola was asking a series of odd questions that would be difficult for anyone to answer, there was, it gradually emerged, it seemed, a method to the questioning. Somehow, somewhere instinctively, Pasbola knew there was something not right with Riyaz's account.
'After Indrani's arrest did you go to the police and say I did this kind of forgery?'
Lawyer: 'Did YOU not ever feel scared?' Shyamvar Rai: 'I am a driver, I said okay. Madam said it is your job...'
'I kept photographs of everyone. Because I was working for them.' 'Madam, Saab...' Shyamvar Rai, the approver in the case, said in a tone that tried to suggest that that would be a routine practice for a driver.
Without a moment of hesitation, Rai jumped up on his rickety wooden stool in the witness box. He then drew his legs close to his body and wrapped his arms around his knees and finally tucked his head into his knees demonstrating the fetal position.
Not Mekhail. Not Rahul. Not anyone. 'Wouldn't someone have asked?' Indrani asked.
There it lay, a photograph on the desk under a stapler, and later a stamp pad, forgotten, done with, like its subject, a Mumbai Metro One employee who vanished overnight.