Didn't answer that question so will try to answer as best as I can.
The Naxalites have very little, or no external source of military hardware. Their weapons are either seized civilian hunting weapon, looted or recovered weapons from security forces or "country made weapons" ( improvised weapons ). The range of weapons is bewildering. Apart from firearms and "bombs" the Naxalites use traditional weapons such as primitive tribal hunting bows ( bamboo, and animal gut ), wood cutting axes, spears, swords, bamboo spikes, booby traps like "tiger pits". They use commercial blasting powder pilfered or extorted from mining contractors to make "bombs". They also use crude "Molotov Cocktails ".
What is a mystery is their source of ammunition. 0.303 ammunition is no longer manufactured and 0.315 supplies are extremely limited and controlled in India. 12 Ga shotgun shells can be reloaded fairly easily; but reloading rifle ammunition is extremely difficult under primitive conditions.
The INSAS rifles they loot use 5.56 x 45 mm , and the FN Ishapore rifle uses 7.62 X 51 mm . The AKMs use 7.62 X 39 mm.
So basically the three "modern " assault rifles they are using in tiny quantities have three different kinds of ammunition. The Naxalites use older Sterling and Sten sub-machine guns using 9 mm ammunition. Due to the shortage of ammunition it is unlikely any of the weapons the Naxalites use are ever fired in an automatic mode.
The Naxalites have very few light machineguns ( other than the handful of the ones they captured) , grenade launchers ( substituted by arrow bombs), long range optically sighted sniper rifles, no night vision devices, no anti-materiel rifles, no long range heavy 0.50 caliber machine guns. no rocket propelled grenades, no mortars. Even the light machine guns are not the lightweight ultra-modern optically sighted types but older heavier magazine fed types, and they have no ammunition stocks to support their fire suppression.
On communications, the Naxalites use captured wireless sets and walkie talkies but use these sparingly as getting special purpose batteries, is difficult. Since the tuning circuits are known any use of these radios in a transmit mode makes them easy to be intercepted and located by the security forces. The Naxalites use them in a "listen only " mode to hear their adversaries. The Naxalites communicate through cour
Naxalite tactics vary from mass demonstrations cum attack, where only a small portion of a mob is armed, and the shear numbers are supposed to be intimidating. They also indulge in ambushes.
I don't normally watch Shekhar Gupta, but this episode of his on Maoists is worth watching.