New Delhi: The Central investigative agencies are inching closer to solving four terror attack cases out of seven reported after 26/11 Mumbai carnage.

The agencies are all set to solve the conspiracy behind four terror attack cases including the one at the Sheetla Mata Ghat in Varanasi. The breakthrough in these four cases is expected to unravel the links to other terror attack cases as well.

According to highly placed sources in the Centre, the investigating agencies are on the verge to solve the 2010 Sheetla Ghat bomb blast case.

Apart from the Sheetla case, the explosion at German Bakery in Pune, the failed attempt to trigger explosions at Bangalore's Chinnaswamy Stadium, attack at Delhi's Jama Masjid, Opera House attack and the recent explosion at Delhi High Court were the major terror activities reported after Mumbai 26/11 attack.

Already under fire for corruption and inflation, the Centre has been left in an awkward position on the issue of internal security as the investigating agencies are yet to work out any major terror attack.

On one hand, while the investigating agencies are far from solving the cases, they still have to find the perpetrators behind these attacks, especially in the Delhi High Court bomb blast case.

Now, they are hoping that the initial investigations will lead to few links which could prove crucial in cracking the cases.