Will put together the post explaining this by EOD today.
Apologies for delay.
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Hadas are a people very stubborn in the long run. They kept changing camps to get rid of an aggressive ally or Imperial power, for maintaining their Independence.
The overall history of Hadas tells that though they were subdued of many occasions, never fully reconciled with it. So time and again, they kept fighting and allying with various neighbors to
keep their Independence absolute.
In expansion spree, Hadas first subdued Meenas and Bhils of the region and then attacked a Solanki Chief at Toda in 1346 A.D. Next they defeated Kheechis at Palaith in 2nd attempt.
All this was happening parallel to a crucial change unfolding in a war torn Mewar. The line of power at Chittor was taken over by Sisodias (cadet branch of Guhilots) under Rana Hammir.
So Mewar as well was expanding its territories at the same time.
In 1350s the two powers ultimately clashed. Hadas under Rao Narpal were defeated in a battle with Mewari forces against Kunwar Kheta, prince of Rana Hammir.
They handed over the prime fort of Mandalgarh and accepted the suzerainty of Mewar, but only for name sake.
After this, some minor skirmishes occured (starting with Mewar allies attacking Hadas' Zamindar in retaliation to his land grab) but mostly calm was maintained via diplomacy and marriage (Hada daughter given to Mewar prince).
Peace was once again broken in 1382 A.D. when some controversy led to flaying of tempers and Maharana Kheta attacked Bundi. Rao Lal Singh Hada and Maharana Kheta both died in that battle and Bundi fell to Mewar.
After some fighting, Hadas realized the situation and returned to diplomacy and appeals.
Bundi was restored to Hadas by Rana precisely with the reasoning that stateless Hadas would only cause trouble, while settled as friendly vassals they would add to Mewar's strength.
There was marriage season again but so was the slowly simmering resentment against Mewar's shadow. Hadas wanted to be independent.
In Mewar once Maharana Lakha was succeeded by Mokal/Mokul in 1397 A.D. (who was a weaker ruler), the Hadas took back 3 of their forts from them (including the most important Mandalgarh).
Hadas knew that Mewar won't oversee this and hence they tried to build alliances in the region, to deter Mewar from any action. That is the context in which they courted Malwa Sultanate.
Bairisal Hada came to Bundi throne in 1413 A.D. Initially in his reign since Mewar wasn't in strongest form, the Hada Chief dared (in 1423 A.D.) to aid Malwa Sultanate's invasion of Gagraun.
The place was then under Kheechi Chauhans led by Achal Das who was son-in-law of Maharana Mokul. This move also intended to further deter Mewar from moving against Hadas.
But then on one hand the Malwa Sultan died, while on the other Maharana Kumbha ascended the Mewar throne, thus tables were turned. Hadas became anxious.
Kumbha not only believed those forts (that Hadas took earlier) belonged to Mewar, but also considered their alliance with Malwa as detrimental.
In 1435-36 Kumbha asked Ranmal Rathore to invade Bundi. Hada Chief Bairi Sal sued for peace instead, handed over the forts again and accepted suzerainty of Mewar.
In 1440 A.D. Mahmud Khilji attacked Chittor, got defeated and had to stay captive in Chittor for 6 months before Maharana release him.
Hadas revolted again in 1442 A.D. and Kumbha went in personally to suppress them.
Seeing Hadoti under Mewar was unbearable for Malwa. When Mahmud Khilji got to know of Kumbha's absence from Mewar, he began another attempt to capture Mewar.
Before attacking Chittor, Khilji started with attack on Bundi region of Hadoti. However due to an appeal of help from Chief of Mewat, Khilji had to divert his attention there, thus Bundi was spared. Khilji sent his father to plunder Mandsaur (countryside), left a portion of army to seige Chittor and himself set out to attack Maharana Kumbha. The latter sprinting back from Hadoti, fell on Khilji near Mandalgarh fort. He eventually defeated khilji by a night attack.
Two years later in 1444 A.D Khilji spent his ire on Hadoti by another invasion and subdued it. He however had to come again and again in the region afterwards as his authority was never fully established there. Khilji was hell bent on discouraging smaller states from allying with Mewar, thus while on one side he waged long term war with Mewar, he also kept sending troops into
Hadoti to keep the Haddas under pressure. Further, in 1446 A.D before coming back towards Mandalgarh (in Mewar) for battle, Khilji first went to Kota (in Hadoti) where he deposed his ally (a son of Bairisal Hada) on suspicion of his secret alliance with Mewar and put another son in charge whom he thought was more loyal.
But given the stubborn nature of Hadas, Khilji had to send troops in Hadoti multiple times even in 1450s to suppress revolts.
Kota's Hada forces then joined Khilji in another of his attempt to win Mandalgarh from Mewar in 1457 A.D. and he succeeded this time (as his Hada supporters obviously knew the fort inside out, having held it before).
Before Khilji could continue towards Chittor, news of Bairisal's revolt in Bundi came in. Khilji sent 2 officers to punish Bairisal harshly and himself set on Chittor. Bairisal's Hadas fought this army fiercely but got defeated. Bairisal died and two of his seven sons were converted to Islam.
All this time, Kumbha was finishing the Nagor Sultanate. He then got news to twin attack (Gujarat Sultanate towards Kumbhalgarh & Malwa towards Chittor). He fought with Gujarat Sultanate near Kumbhalgarh and then stood in vigil of Khilji's forces. He had no time and opportunity to help the lonely revolting Bairisal Hada.
Khilji when foiled in his latest effort of joint attack, went back quietly to Malwa.
The succesor of Bairisal (Rao Bhan Deo) discarded three of his brothers for not helping the father against Malwa. He regained Bundi from Malwa, with help of Maharana Kumbha.
Two officers from Malwa were sent to Bundi with the promise that if won, they'll get to rule it. They capture Bundi and Bhan Deo took shelter in Mewar, got Bhilwara as Jagir.
Later Hada Chiefs not only recovered Bundi again but also helped Mewar in turn, against Malwa invasions.
It seems, both Mewar and Malwa could never trust the Hadas in matters of loyalty (rightly so because Hadas also never considered themselves truly subservient to anyone) and hence kept
pressure on the latter to desist them from going to the other's side.
The appetite of Hadas for war and zeal for sovereignty can be guessed from the fact that despite being a small state and facing defeats on many occasions, they often crossed swords with Mewar, Solankis, Kheechis and Turks of Malwa.
They tried to ally with one of the powers (Malwa / Mewar) in different times as per the need, to avoid dominance of the other on them.
Sources - Maharana Kumbha by Harbilas Sarda, Relations of Hadas with Mughals by R. S. Mathur.
Regards,
Virendra