Why did Maratha army sell RED FORT in 1761?

Maratha Army under commander Raghunathji Rao and Peshava Balaji Baji Rao, had captured Delhi in 1757 and continued pushing the Afgan  Ahmed Shah Abdali . . . 

4 May 1758 status - Lahore, Multan, Kashmir and other subhas on this side of Attock were under Maratha rule for the most part. 

On 14th January 1761 - Maratha army lost the third war of Panipat - and - after that they could never come up to that strength in history till date . . . .

But why did they lose the third war at Panipat???

The main reason for the failure of the Marathas was that they went to war without good allies. They were expecting support from their allies- Rajputs, Jats and Sikhs, but none of them supported Marathas in the battle. The Marathas had interfered in the internal affairs of the Rajput states (present-day Rajasthan) and levied heavy taxes and huge fines on them. They had also made large territorial and monetary claims upon Awadh. Their raids in the Jat territory had resulted in the loss of trust of Jat chiefs like Suraj Mal. They had, therefore, to fight their enemies alone. Marathas treated Sikhs, who assisted them in their north-west conquest as a non-entity in Punjab affairs.Sikhs were ever ready to co-operate with the Marathas, but it goes to the discredit of the Marathas that they did not make a proper confederacy with Sikhs.

In such a hostile condition, when surrounded by the Afgans, they no one to help . . . no local support 1000 km away from their capital Pune . . . . the Maratha army had to sell the silver bricks and other valuable items in side the Red Fort for their daily expenses . . . . 

The worst reflection was - a jat worker showed the Afgan army the easiest way to cross Yamuna so that they can surround the Maratha . . . .
Sikhs kept themselves busy making their first huge Gurudwara in Delhi.
Jats army left the Maratha army after they wanted to make Vilasarao - son of Baji Rao as the Delhi ruler!!!

Result - loss of the third war of Panipat . . . 
Followed - 

Mass of surrendered Maratha soldiers were handcuffed and then murdered, their heads chopped off by Afghans. The Afghan cavalry and pikemen ran wild through the streets of Panipat, killing tens of thousands of Maratha soldiers and civilians. The women and children seeking refuge in streets of Panipat were hounded back in Afghan camps as slaves. Children were beheaded before their own mothers and sisters. Afghan officers arranged victory mounds of severed heads outside their camps. According to the single best eye-witness chronicle- the bakhar by Shuja-ud-Daula's Diwan Kashi Raj, about 40,000 Maratha prisoners were slaughtered in cold blood the day after the battle. According to Mr. Hamilton of Bombay Gazette about half a million Marathi people were present there in Panipat town and he gives a figure of 70,000 prisoners as executed by Afghans. Many of the fleeing Maratha women jumped into the Panipat wells rather than risk rape and dishonour.

Abdali's soldiers took about 22,000 Hindu women and young children and brought them to their camps. The women were raped in the camp, many committed suicide because of constant rapes perpetrated on them. All of the prisoners were exchanged or sold as sex slaves in Afghanistan, transported on bullock carts, camels and elephants in bamboo cages.

Siyar-ut-Mutakhirin says :

“	The unhappy prisoners were paraded in long lines, given a little parched grain and a drink of water, and beheaded... and the women and children who survived were driven off as slaves - twenty-two thousand, many of them of the highest rank in the land.

Conclusion - Maratha is only a Maratha - not an Indian . . . . they cant save or rule India . . . .